Sonovoltammetric determination of toxic compounds in vegetables and fruits using diamond electrodes

Gustavo S. Garbellini, Giancarlo R. Salazar-Banda, Luis A. Avaca *
Instituto de Química de São Carlos, USP, CP 780, 13560-970 São Carlos, SP, Brazil

The direct determination of methylparathion in potato and corn extracts and its degradation product 4-nitrophenol in lemon and orange juices by ultrasound-assisted square wave voltammetry using diamond electrodes is reported here.

The sonovoltammetric results for both analytes in pure water and in complex food samples showed greater sensitivity and precision and much lower limits of detection and quantification than the silent measurements. The limits of detection for methylparathion in water and corn extract were 4.86 and 10.1 lg L–1, respectively, values 55% and 72% lower than those obtained by silent voltammetry. The recovery values were also very satisfactory and varied between 83.5% and 96.2% for all systems. These improvements for the sonovoltammetric methods are due to electrode surface cleaning and mass transport enhancement towards the electrode surface and proved to be a powerful tool for the detection of toxic residues in complex samples without any pre-treatment or clean-up of the matrices.

_ 2009 Elsevier Ltd. All rights reserved.

Introduction to Bronchitis by Carina Dasmarinas

Infection of the bronchial tubes is also known as bronchitis,and is bitter and bothersome. As the situation worsens, mucus is developed. The inflammation of the bronchial tubes is the main cause of bronchitis.

Drink plenty of fluids.

It is highly endorsed that you drink a lot of water, and stay away from fluids like coffee etc. Juice from fresh fruit is great.

It is often best to avoid cold drinks as it can constrict the air passageway.

Look at home for your everyday product remedies.

Ginger is said to be an effective remedy for breathing dilemma including bronchitis and respiratory problems. Ginger can be taken in many different ways including tea and adding it to juices etc. By drinking the tea a few times a day it may offer some more relief. Try Apple, lemon and ginger juice - wow it will blow your socks off.

Onions! yes Onions are also a great aid for bronchitis. Juicing onions is most effective if taken first up in the morning.

Almonds are also great. adding the 'pounded' 7 almonds to your drink just before going to bed is best.

Juicing these greens with carrot and celery is the most palatable.

Fresh asparagus, beetroot, celery and carrots is also a great juicing combination. You can add other vegetables to your liking.

It is believed that the antioxidants help your lungs from damage and possible degradation.

Yes that is right, you need to STOP smoking. It is a well known fact that Smoking deteriorates your lungs. This leads to damaged blood vessels which makes it harder to soak in the oxygen. Passive smoking (inhaling other people smoke) is just as bad as smoking. Therefore - stay away from smoke in general or use vaporizer

Humidify the air and your environment.

It is gloriously to have a vaporizer in your bedroom when you sleep at night if you feel a bronchial attack or restricted airway.

Breathe in fresh air. Get outside if possible. Morning exercise is probably the best as it 'sets up a great rhythm' in your body for the rest of the day. Make sure your posture and breathing is also done correctly when exercising.

Practice these minimal steps to help alleviate some of your bronchial symptoms. Remember that if you experience pain or things you are not sure of, then it is best to seek health care professional help immediately, BUT - don't be afraid to try something different or new.

Eating Right Yields Healthy Teeth by Mark Mutschler

When you eat healthy foods, your body and teeth will be healthier as well. A healthy diet can give a body the vitamins, minerals (even fluoride), fiber, carbohydrates, protein and fats it needs. It's important to follow the food pyramid guidelines eating mostly vegetables and fruits, fewer proteins, even less red meats and very little fats and sugars.

Children grow, as do their teeth. Thus, without a healthy diet their teeth won't develop properly. When they don't get the proper nutrients, teeth can get dark yellow or brown spots on the enamel. Damaged enamel will be more likely to need fillings.

While most parents think fruit juice is healthy, even watered down juice is like liquid candy to the teeth. It's recommended you only give children formula, milk or water until the age of 3 years old. They are healthiest if given less sugary beverages.

Not only do sugary snacks give way to excessive weight gain, but it can also feed the bacteria in the mouth and cause cavities, bad breath and ultimately gum disease. If your child eats a lot of sugar on one night (like Halloween), it's not nearly as bad as if they eat a little bit each day. Even natural foods can have large amounts of sugar.

Snacks like carrots, apples, oranges, low-fat cheese and low-fat yogurt is best for a child's teeth

The Value of Water for Weight loss - You Will Be Surprised At What You Are About to Learn! by Regina Rose

The Benefit of Water In Your Diet - You Will Be Astonished At What You Discover!

Are you someone that needs to find an honest to goodness weight loss program that is effective enough to help you get rid of unwanted pounds; with no real effort on your part? The best secret to burn fat at a faster rate, is something you have in your home already.

In order for diets to be effective, you first need to understand the importance of drinking plenty of water. Our human bodies are made up of about 70% of water. Certain parts of the body carry different amounts of water in them. Men use more water in their bodies than women, essentially it is because their bodies contain more muscle mass. Water is important for all of us because it performs various functions in our bodies.

When it comes to dieting to lose unwanted fat, one must understand that any diet you are on should include drinking plenty of water. An important advantage in drinking water is that it works to carry nutrients through the system, lubricates joints, cleanses all waste, and keeps the skin supple. It can be extremely hazardous to your health when your body does not get enough water because if the kidneys don't get enough fluid, the liver stops metabolizing fat and begins filtering waste. When our intestines do not have the efficient amount of water, they will begin to draw out what they need from the cells in the bowel, sometimes causing constipation. By drinking plenty of water you will help your colon to function better.

Stop Dehydration

When your body is dehydrated it affects the high-water-content parts of the body first, some of the signs of dehydration you will see first are feeling physically drained and decreasing mental alertness. Children are likely to be less active than usual; if this happens, give them a glass of pure drinking water over fruit juice or milk and get medical assistance as soon as possible if any symptom is highly unusual or worse. It is not uncommon for some people, experiencing dehydration can be initially expressed through hunger pains and is not always combined with thirst. When you feel like you need a snack, it is a good indication that you should drink some water. It is beneficial to drink a full glass before every meal and even before you reach for a snack.

Body Facts...
Lean muscle tissue has about 75% water in them.

Drink Purified Water: Water is the single most important nutrient our bodies need to survive and yet not surprisingly, many people take it for granted. A large amount of the human body is water. Making sure your body has enough water is one of the best things you can do for yourself. All diet programs should stress the reason drinking water and plenty of it, will help in reaching your goal of losing weight and being healthier. More often than not it is not best to use thirst alone as an indicator for when to get a drink. As soon as your body becomes thirsty, it's most likely that your body is experiencing the begin stages of being dehydrated. As we get older your body is less able to sense dehydration and send your brain signals of thirst. Extreme thirst and experience increased urination, this could be signs of a more serious medical condition. Get in touch with your family doctor right away if you experience either of these.

The Importance of Drinking Water During Exercise: The more you exercise especially in warmer weather, your body will start to perspire or sweat, the more water you need to drink, and if you suddenly feel very thirsty, it's because your body already needed water and is taking water from your salivary glands. If you are exercising at mid-day, when temperatures are very warm, water should be replenished every 15 minutes in order to keep muscles strong and to keep your body from being over heated. This is highly significant for long endurance events, which is one reason that runners and hikers will usually carry water with them. Dehydration can lead to threatening health problems, even death. Drinking water may be the most tremendously needed pieces to the weight loss puzzle. Water contains no calories, fat, or cholesterol, is inexpensive and readily available. It is nature's appetite suppressant, and water will help keep your metabolism working correctly which will help to burn more calories.

Important Fact...
A key to successful workouts is to be hydrated before you begin and hydrate again immediately afterwards.

Your Metabolism: Increased activity levels can increase your metabolic rate because as you breathe faster your heart rate also increases. Your body's metabolism is a part of the function of the liver, which works to burn fat however, if you don't drink enough water, the liver is unable to do its job properly and then less body fat is metabolized resulting in more of it being stored in our body. This leads to either weight gain or it can cause you to reach a frustrating plateau in your weight loss journey. To help your body to metabolize fat and lose weight, you need to drink plenty of clean water. This will improve your kidney and liver functions. Skipping meals will also negatively affect your metabolism and cause your body to go in to starvation survival mode. Starvation metabolism refers to a slowing of the metabolic rate surprisingly fast. The body instinctively goes on alert that it is not getting the nutrition it needs and begins to naturally burn calories more slowly to survive longer. The more you drink water, the better your metabolism rate is going to be. As you start drinking water throughout the day it will increase your metabolic rate so that your body is able to burn more calories. People who drink less water will burn calories 2% slower than those who are drinking the adequate amount of water.

The Advantage of Water for Diets - You Will Be Surprised At What This Article Has to Say About Water! by Linda Raimee

The Importance of Water While Dieting - You Will Be Motivated At What This Article Has to Say About Water!

Are you one of the millions of people looking for a genuine weight loss program that is effective enough to help you get rid of unwanted pounds; and do it successfully overnight? The greatest secret to dieting successfully is right in your home?WATER!

In order for diets to be effective, you need to understand the importance of drinking plenty of water. Our bodies are made up of about 70% of water. Different parts of the body carry different amounts of water in them. Men hold more water in their bodies than women, basically because their bodies contain more muscle mass. Water is important for all of us because it performs various functions for your overall health.

If you have unwanted weight and are currently trying to develop a healthier lifestyle, you need to know that any diet you are on should include drinking plenty of water. A great benefit from drinking water is that it works to carry nutrients through the system, lubricates joints, void feces from the bowels, and keeps the skin supple. It is extremely harmful when your body does not get enough water because if the kidneys don't get enough fluid, the liver stops metabolizing fat and starts filtering waste. Intestines that do not receive enough water will begin to extract what they need from the cells in the bowel, bring about constipation. By drinking plenty of water you will help your colon to function better.

Harmful Effects of Dehydration

When your body begins to get dehydrated it affects areas of your body that require higher amounts of water the most, symptoms of being dehydrated can include feeling physically drained and decreasing mental alertness. Other important possible symptoms: headaches, dizziness, extreme thirst, dry mouth and little or no urination; any urine that is produced will be dark yellow or amber. Commonly for many people, experiencing dehydration is first noticed by feelings of being hungry and is not always related with thirst. When you feel like you need a snack, it is a good indication that you should drink some water. Begin a new habit to drink a full glass before every meal and when you eat in between meals.

You Should Know:
Water makes up 55 to 75% of your body weight (around 10 to 12 gallons).

Drink Purified Water: Water it is vital to survival and yet most of us take it for granted. A high percentage of the human body is water. There really is no other more prized nutrient for our bodies than water. All diet programs should stress the reason drinking water and plenty of it, will help in reaching your goal of losing weight and being healthier. Generally it is not the most reliable method to use thirst alone as an indicator for when to get a drink. If you begin to feel thirsty, it's most likely that your body is becoming dehydrated. It is good to know that, when our bodies begin to get older they are less able to sense dehydration and send signals to your brain that your body is not properly hydrated water. If you find you are always thirsty and experience increased urination, this could be signs of a more serious medical condition. Get in touch with your family doctor right away if you experience either of these.

Water + Exercising = Good Health: The more you exercise especially in warmer weather, your body will start to perspire or sweat, the more water you need to drink, therefore be sure to drink water before you feel thirsty. If you are exercising in warm weather, water should be replenished every 15 minutes in order to keep muscles strong and help keep your body from dehydration. This is particularly true for long endurance events, which is the reason why many outdoor sport enthusiasts will usually carry water with them. Dehydration can lead to severe health problems, even death. Drinking water is without a doubt one of the most important pieces to the weight loss puzzle. Water contains no calories, fat, or cholesterol, is inexpensive and readily available. It is nature's appetite suppressant, and water will help keep your metabolism working correctly which will help to burn more calories.

Body Facts...
A key to successful workouts is to be hydrated before you begin and hydrate again immediately afterwards.

Metabolism: Increased activity levels can increase your metabolic rate because as you breathe faster your heart rate also increases. Because metabolizing fat is a main function of the liver, it can't function at peak levels when taking on the added workload from the kidneys and that means that less body fat is metabolized resulting in more of it being stored in our body. This leads to either weight gain or it can cause you to reach a frustrating plateau in your weight loss journey. To prevent this from happening and to help your body to metabolize fat and lose weight, you need to drink plenty of clean water. This will support your kidney and liver functions. Skipping meals will also negatively affect your metabolism and cause your body to go in to starvation survival mode. Starvation metabolism refers to a slowing of the metabolic rate surprisingly fast. The body instinctively goes on alert that it is not getting the nutrition it needs and begins to naturally burn calories more slowly to survive longer. The more you drink water, the better your metabolism rate is going to be. As you start drinking water throughout the day it will strengthen the function of your metabolism rate to burn more calories. Keep in mind that people who don't drink enough water will miss out on all the advantages water has to offer dieters, such as burning off calories faster.

The truth about drinking water purification systems by Andre J. Sylvester

It's a fact that there are many types of drinking water purification systems on the market today. There is a huge demand for these systems, because consumers want to improve the quality of their drinking water. The best way to make an informed decision on which system is best for you is to understand what you want to get out of your drinking water, and what do you want to keep. With that information, you can select the drinking water purification system that best meets your needs.

The first area of concern is unwanted chemicals in your water. Studies have shown there to be over 2100 potential chemicals in municipal water supplies. This wide ranging list includes chlorine, pesticides, herbicides, synthetic organic chemicals and inorganic chemicals. Any one of these could be a health concern, and most drinking water purification systems target the removal of chemicals.

The second area of concern is bacteria and other living organisms. Chlorine is widely used to disinfect water, but this heavy use has generated a number of organisms such as giardia and Cryptosporidium which are chlorine resistant. This is a critical area which only certain drinking water purification systems can address adequately.

The third area of concern is heavy metal contamination. Lead is the most harmful of the metals often found in drinking water. This metal can cause development issues for children, as well as hypertension in adults. Metal removal is very important for healty water.

We have covered the primary areas of concern in drinking water today, so what are the key features in drinking water purification systems that can address these areas of concern?

Chemical removal can easily be accomplished by a mechanical filtering system. The filter needs to have pores which are at the submicron level to be most effective.

Metal removal is most efficiently handled when the metal attaches itself to a filter or other physical element within the drinking water purification system.

Removal of organisms like giardia and cryptosporidium are best accomplished by submicron filter elements. The small size of the pores keeps the organisms from passing through the system.

Now that you know the key features needed in drinking water purification systems, you can do the necessary research. There are some great drinking water purification systems that can help you have the best quality drinking water, so focus on the features listed above to get the best results!

How to Get Rid of Toxins for a Urine Test by How To Get Rid Of Stuff

It's that time of the year again where your employer requires all employees to submit to a mandatory urine test. Not that your employer is accusing you of a serious indiscretion or anything, but that the company just wants to make sure that you're healthy and fit for work. A urinalysis is one of the best ways for companies to test whether or not a particular employee is under the influence of drugs or alcohol. While there's no way that you can cheat a drug test, there are times that you do need to cleanse your body of toxins and other harmful substances before you submit yourself to a urinalysis. You may be recovering from a previous drug dependency, or that you're under prescription medication that may alter the results of your urinalysis. Perhaps you have overindulged in a party and completely forgot about the urine test scheduled for you. Here are some ways that you can get rid of the toxins in your body in time for a urinalysis.

How a Urine Test Works

A urine test is one of the many tools and methods used by doctors to determine the physical health and well-being of a person. The substances, enzymes, proteins, and chemicals found in urine can give doctors an idea on what ails a patient, and the chemicals he or she has been introducing into his or her body. A urinalysis is one of the best ways to determine whether or not a patient has been taking in drugs, or shows signs of alcoholism. Many people think that they can "fool" or "cheat" on a drug test by taking in various diuretics and other healthful drinks. A urine test is much more complicated than that; a urinalysis can still detect traces of protein, sugars, and ketone bodies that are found in urine. While you cannot get rid of complicated substances in your urine that are introduced through drugs and alcohol consumption, you can break down some substances to clean out your urine samples. Remember that any method to purge your body of toxins requires that you stick to a regimen for at least three weeks. There's no way that you can get rid of toxins found in urine in a matter of a few hours or a couple of days.

Rehydrate

To get a healthy urine sample, you need to keep healthy urine patterns. Without a source of fluids, your urinary system will be forced to take water from your cells, which will result in a urine sample that's high in protein, acids, and ketone bodies. It's very important to keep your body supplied with water and fluids:

• Water. Plain water is still your body's best source of water for urine. While you can try sports drink and isotonic water brands available on the market, there's still no substitute for eight glasses of water a day.

• Milk. Milk is a very good source of fluid, as well as nutrients that help you keep a healthy body. Remember that milk will not disguise or mask complicated substances and chemicals found in urine. If you use drugs, all the milk in the world will not remove the chemicals found in a urine sample.

• Coconut water. Coconut water is not only an excellent source of liquids, but it also contains many healthy substances like potassium, iron, and magnesium that help result in a healthy urine sample.

Water cooler - A necessity not a luxury by Tom Lopez

A device that cools and dispenses water whenever we need it is known as water cooler. Cold drinking water without getting some ice out of the fridge or waiting for more ice to freeze can be a blessing on a hot summer's day. All we need to do is get a water cooler.

Water plays a major role in keeping our body healthy as it provides us safe and clean drinking water. Nowadays water coolers have become very popular and we can easily find them in homes, offices, airports, malls, and many other places.
The wall-mounted water cooler is the most common water cooler. Here, the cooler is connected to the water supply and electricity is used to run the refrigeration to cool the incoming water.

With the advancement in technology, direct water coolers have got into serious business across the globe. These days' direct water coolers have become a household name. These coolers have become so common in industrial and commercial sectors that we will hardly hear anyone saying that do not possess one.
Commercial estates prefer bottle water coolers as they are extremely convenient to use. These coolers function really well when it comes to providing clean fresh and cool water to employees throughout the day. This also keeps the health of these employees in check. Some bottled water companies even offer filtered drinking water coolers to their clients.

With the advancement in the area of water coolers, these are available in smaller sizes, these days. With the passage of time, water cooler has come up with varied styles. Today, we can purchase as well as utilize a water cooler available in a wide variety of color, materials and shapes.
The process of modification and improvement has not stopped with this. Today, the manufacturers are focusing on enhancing these devices by keeping in mind special methods of purification.

There are many reputed direct water coolers manufacturing companies offering beneficial products to consumers. All you require to do is to make a research and decide on one that takes adequate care of your specific requirements. A lot of water coolers are available with varied energy conservation features.
Therefore, we should free ourselves from the risk of any water infection with clean drinking water that is free of bacteria and algae, and get a home water cooler to enjoy a chilledAir cooler -

This Small Water Dispenser Is a Friend to The Environment by Ashoka Taavi

You may not be aware of it, but our planet isn't an endless source of water and it has been proven that we are running out of it. We are wasting millions of water bottles each hour and consuming vast amount of energy with all sorts of water purification machines. So are there any solutions? Well, it appears some people are already working in that direction. Aquaovo, a leading french company in innovative water technologies, have developed a small water dispenser called OVOPUR that combines smart thinking and advanced technologies into its design.

The main feature of this futuristic looking, egg-shaped water dispenser is that it doesn't use electricity. Not a single bit of it! The way it works is through the use of laws of physics, with the filter utilizing gravity to revitalize and process the water.

The shape of the OVOPUR dispenser doesn't come out of eccentricity. It's the result of the thorough research of water experts and incorporates ideas in order to provide the most efficient circulation and regeneration of water. The unit is made of porcelain, glass and metal, which results in aesthetically appealing design.

With complete lack of sharp angles the water meets little resistance in its path, thus flowing freely and naturally. The way temperature changes along the container guarantees that the water is always in motion, preventing stagnation and bacteria growth. An idea truly inspired from nature itself!

The filter cartridge itself, under the name of ACQUACRYSTAL, is unique in its design, functionality and materials used. The water is provided from the top lid and into the 4L top container, then processed by the filter. The cartridge allows for the dispenser to be used in two modes - distribution or filter. In distribution mode the filter is removed from the dispenser and the container of up to 11L of clean fresh water is available for you to use anywhere by the simple turn of the tap handle.

The filter structure is what really sets new standards for quality of water. The 4 sections, consisting of a KDF 55 (powder-like matter), Activated Carbon, Microporous Bioceramics and Quartz Crystal, ensure ultimate level of purification and substantial increase of taste and freshness of the water. From organic contaminants, through chemicals and heavy metals, from chlorine to lead and harmful bacteria, plus any rust or dirt -- none of these ever passes beyond this sophisticated filter. The result guarantees you take your water health care to another level.

Drinking water from OVOPUR is pure joy and the benefits for the environment are apparent. With a small water dispenser like this you can feel safe that you don't contribute for the destruction of nature's balance and that you prevent any potential harm done to your body.

Benefits of Drinking Water by Robert Harden

Most people are aware that drinking water is essential to human life. Without it, the human body will shut down and experience serious health problems, or even death. However, many people overlook just how important water is to staying healthy and fit. The fact is, anyone who begins a fitness regimen needs to grasp just how important water is to a great workout and the role it plays in achieving great physical results.

Working out will make you thirsty, but be sure you are drinking enough to compensate for your exercise? During one hour of intense exercise, the average person can lose a one quart of water just by sweating. To prevent dehydrating, it is a good idea to drink one glass of water for every twenty minutes of exercise. If you know you are prone to sweating a lot, you should be sure to drink even more.

Drinking water during exercise is extremely important. However, it is just as important to drink plenty of water before and after a workout as well. If you are planning on a tough workout session, you should drink 3-4 glasses of water in the 3 hours before you start sweating. If your muscles are not hydrated when you begin working out, they will be more prone to cramping and injury. Dehydration is also linked to muscle soreness, so be sure your muscles are warmed up and hydrated before you begin.

After your workout, you will want to rehydrate your body with even more water. The optimal time for this is within the first two hours after you exercise. At a minimum, you will want to drink one cup per hour. By drinking water in this key period, you can help your body recover and stave off muscle soreness. Plus, you?ll feel more energized for the rest of the day as dehydration from exercise can cause fatigue.

Of course, water it not just necessary when you are working out. It helps our body function in everything we do. For one, water is essential to help our kidneys process waste. Water is also easily absorbed and can help your body better absorb nutrients from your diet. Some people like to drink sports drinks or other fluids instead of water. These might claim to fuel you with electrolytes, vitamins, and other ingredients. However, these are usually packed with sugar and excess calories. There is no real substitute for water, so remember to drink enough every day.