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...
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 ...
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...
The best peaks parameters (height and area, repeatability, and resolution) were obtained using phosphate-borate buffer. Then, the concentration and pH of this buffer were optimized. Optimization of the concentration and pH of BGE The influence of BGE concentration on the height, area and shape ...
Use of pH-meter for indicating the end point of various titrations in mixed solvents 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 organic solvent in the aqueous solution, steep changes of ap...
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 ...
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....
TBARS were determined spectrofluorometrically using LS-5 spectrofluorimeter (excitation wavelength 528 nm, emission wavelength 558 nm) after extraction with n-butanol treatment with thiobarbituric acid. The significance of differences between nonagenarians and control group was examined by ANOVA–Kruskal–...
A conventional three electrode system was employed, consisting of a MWCNT modified CPE as a working electrode, a silver/silver chloride (Ag/AgCl/KClsat) (Metrohm, Switzerland) and a Pt wire counter electrode (Azar electrode, Iran). Solution pH values were determined using a 691 pH meter (...