pH measurement

pH measurement

[‚pē′āch ‚mezh·ər·mənt]
(analytical chemistry)
Determination of the hydrogen-ion concentration in an ionized solution by means of an indicator solution (such as phenolphthalein) or a pH meter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The pH of that buffer solution was 8.1 to 8.2 and pH measurement was performed with a digital pH meter (827 pH lab, Metrohm AG, Herisau, Switzerland).
The mechanism reported suggests the acidification of solution by the formation of [H.sub.3][O.sup.+] ions, which is showed by the pH measurement in different experimental conditions.
CORE testing is comprised of oral sample collection and oral fluid pH measurement. CORE classifies the level of drug detected as within, above or below the expected concentration range.
The rest of the book is organized in sections on chemistry of pH and pH measurement, physiology of skin pH, pH in skin pathophysiology, and pH in cosmetic products and topical formulations.
Proper analytical screening including assay determination via High Performance Liquid Chromatography (HPLC), redox potential, pH measurement and general raw material compatibility testing helps in the development of an effective microbial protection program to inhibit or control the growth of microorganisms that cause biodeterioration.
The context in which that data was derived is similarly critical, she adds, whether your result is a simple weight or pH measurement, or a more complex set of chromatographic and mass spectrometry data.
* pH measurement was done in the usual way, in one reading, using an electrode model designed for more viscous media.
Oropharyngeal pH Measurement. Immediately following completion of the RSI, each participant underwent an oropharyngeal pH monitoring study.
Three major procedures were introduced in this research, lichen morphology observation, lichen distribution count and bark pH measurement. For lichen morphology observation, Cryptothecia striata was chosen to be observed.