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The resonance rayleigh scatterting (RRS) spectrum of 3-(4'-methylphenyl)-5-(4'-methyl-2'- sulfophenylazo) rhodanine and bovine serum albumin (BSA) in the BR (Britton-Robinson) buffer solution at pH 2.3 was studied with the presence of SDS microemulsion. It was found the RRS intensity of M4MRASP and that of BSA is weak respectively, but sharply enhanced when the two compounded. The RRS intensity was...
Second order scattering (SOS) used to be regarded as a kind of interfere of spectrofluorometry. The characteristic and principle of SOS have not been studied deeply. In this paper SOS was found to be a new method to determine trace substance with good potential of analysis. The reaction between Chrome Azurol S (CAS) and bovine serum albumin (BSA) was investigated by the method of second order scattering...
A sensitive, simple, new catalytic-kinetic spectrophotometry method is proposed for determination of trace molybdenum (VI) which is based on the molybdenum's significant catalysis to the fading reaction between carboxyazo I and KIO4 which is quasi-zero-order reaction. The optimum reaction conditions were: 1.0 mL carboxyazo I, 1 mL KIO4, 2.0 mL acetate buffer of pH 5.0plusmn0.05 and at 100degC. Following...
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