Further, the invention relates to a method for determining the H + - concentration, e.g. expressed as pH, in a product or sample thereof, the method comprising contacting the product or sample with an optical H + -sensor according to the invention, measuring an optical property of the ...
or formula II is reacted with hydrogen peroxide in a specimen in the presence of a peroxidase in a phosphoric acid buffer solution, etc. The coloring matter formed by the color reaction is determined to carry out the determination of the hydrogen peroxide. 展开 ...
Anthocyanin from flower petals of rose was assayed by single pH method at pH 1.0 and pH differential method at pH 1.0 and pH 4.5. Anthocyanin concentrate was obtained from dried flower petals of rose by extraction with 60% acidic ethanol solution, low-temperature vacuum concentration, and purific...
injection frequency:30 samples per hour; ratio of injection time to purging time:1:1; gain factor of colorimeter:35; distilling medium: pH=8 buffer solution of potassium phosphate; distilling temperature: 140℃; reaction system: potassium iodide-potassium iodate; and wavelength of light filter: 42...
IMMUNOLOGIC ASSAY FOR DETERMINING PRESENCE OF A PH
A solution containing >=50mg/dl uricase in a buffer solution at 8-9pH is prepared, and the carrier is immersed in tis solution, to give immobilized uricase. Uricase converts uric acid into allantoin in the presence of an enzyme. To determine uric acid using the immobilized uricase, for...
Ph.D. Thesis, Imperial College, University of London, London, UK, 1984. [Google Scholar] Grenon, M.; Bruneau, G.; Kalala, I.K. Quantifying the impact of small variations in fracture geometric characteristics on peak rock mass properties at a mining project using a coupled DFN–DEM ...
only a single structural methodology in the gas phase. Introduction Results Structural evaluation of an α-helical peptide using FRET, IM-MS, and DMS To test the approach, we first investigated an alanine rich peptide, which is expected to form a stable α-helix in aqueous solution39. The ...
Zeta Potentials of Suspended Humus in Multivalent Cationic Saline Solution and Its Effect on Electro-Osomosis Behavior The surface electrical charge was measured for laboratory grade organic soil colloidal particles by varying pH between 2 and 11 and at 0.001, 0.01, 0.1, an... H Moayedi,S Kazemi...
ProtoFit calculates an adsorbent proton buffering value as a function of pH from raw titration data (including pH and volume of acid or base added). The data is reduced to a form where the protons required to change the pH of the solution are subtracted out, leaving protons exchanged between...