How to Use pH Meters for Buffers
A reliable pH meter commonly tests urine or saliva, but enthusiasts can also use pH meters in their homes to help them select an appropriate diet. This diet is based largely on the specific metabolic rate for the loss of weight. You can determine the rate through an equation using age, sex, height, and weight. Buffer solutions are great at resisting changes in pH. A solution that isn't buffered of an acid or base isn't as resistant, which means that if the test solution is contaminated, then the calibration will be off a bit.
Things You'll Need
- Highest range pH buffer solution
- Lowest range pH buffer solution
- Cleaning solution
- Acidic solution
- Sensor probe
- High-quality digital pH meter
- Distilled water
Instructions
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1
Use two buffer solutions to calibrate the meter. Make certain that one is at the highest range of pH whereas the other is at the lowest range. Distilled water is for cleaning the meter. The acidic solution is for storage. Keep in mind that the electrode must have it's own cleaning solution as well.
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2
Calibrate the meter. Put the probe into the low pH buffer solution at 4.0 pH. Place the probe into the high pH buffer solution at 10.0 pH.
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3
Check your meter to confirm whether the sensors need to be adjusted for the temperature of the solution. Some meters have temperature sensors that will auto-adjust.
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Calibrate before and after each measurement to ensure precise work of the pH meter. If you plan to use the buffer and meter on a regular basis, calibration must be performed at the start of each day.
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Tips & Warnings
To determine your specific metabolic rate for the loss of weight, add your weight times 4.4 to your height in inches times 4.7 and take the sum of that number. Then multiply it by your age in years times 4.7 and subtract that answer from your weight and age. Then add 655.
