pH meterIodoacetate methodMeat qualityIn scientific meat quality studies, pH values are usually determined either electrochemically with a pH meter or using the iodoacetate method. As only few studies have been published that directly compared both methods, in the present study pH values of the ...
Basic theory and laboratory investigations have been applied to the electrometric determination of pH in precipitation samples in an effort to improve the reliability of the results obtained from these low ionic strength samples. The theoretical problems inherent in the measurement of pH in rain have...
Thus, the equivalence point can be determined either potentiometrically (using a pH meter) or simply with an acid-base indicator. Three nontoxic mediators (phosphate, EDTA, and sulfite) were tested, and optimal conditions for the sharpest pH changes were sought. A combination of phosphate (a ...
Determination of pH value by colorimetry PH value The pH value is the negative logarithm of the hydrogen ion activity in the solution When the concentration of H + is small, the concentration of H + can be used to calculate pH instead of activity. PH value is one of the most commonly us...
Understand the basic principle of chloride ion selective electrode determination of chloride ion concentration; 2. Understand the meaning and method of fixed ionic strength; 3. Understand the use of pH meter for measuring DC MV value; Three, basic operation: The method of measuring electromotive ...
When the following potentiometric titrations using a glass electrode of pH-meter as an end point indicator were carried out in the presence of polar organi... N Hotta - 《Bunseki Kagaku》 被引量: 6发表: 1972年 Determination of sodium hydroxide in boiler water by a linear titration plot meth...
Inter and intraday precision were less than %12.2 in terms of RSD. Phosphates and pH were determined simultaneously in different eye drops and the results were validated using reference method such as potentiometry (pHmeter) and ion chromatography....
During the study, a Mikro 220R centrifuge with fast cool function (Hettich Zentrifugen, Tuttlingen, Germany), and a FiveEasy F-20 pH-meter (Mettler Toledo, Greifensee, Switzerland) were also used. Water was purified using a Milli-QRG system (Millipore, Vienna, Austria). Stock solutions The ...
ina liquidsamplelikeαpHmeterisintroducedlayingemphasisonitsconcept,itscon-structionanditsapplication.Basedonthetracedetermina-tionofwaterinmethanolthepropertiesoftheinlinearran-gementareexamined.Finallythepracticaltestoftheinlinephotometerinthechemicalindustryisdescribedusingasexamplethemeasurementofureainwater.1 ...
Potassium tetraborate solution: the potassium tetraborate was accurately weighed and dissolved in water, and the amount was fixed to 100 mL. Using a calibrated pH meter, the pH of the solution was adjusted to 9.5 ± 0.1. Then, 40 Hz of ultrasound was applied for 10 minutes, and this was ...