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Citation: LIANG Ai-Hui, ZOU Jie-Ming, JIANG Zhi-Liang, WANG Li-Sheng, QIN Ai-Miao. Resonance Scattering Study on the Interaction Between Protein and Phosphomolybdic Acid and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, ;2002, 19(8): 768-771. shu

Resonance Scattering Study on the Interaction Between Protein and Phosphomolybdic Acid and Its Analytical Application

1.
a Department of Resource and Environmental Science, Guangxi Normal University, Guilin 541004;
2.
b Guilin Sanjin Pharmceutical Company Group, Guilin

Corresponding author: JIANG Zhi-Liang,
Received Date: 8 January 2002
Available Online: 19 March 2002
Fund Project:

A maximum resonance scattering(RS) peak at 470 nm for the system of protein-phosphomolybdic acid(PMA) was observed. The enhanced resonance scattering signal appeared to be the formation of protein-PMA composite nanoparticles with diameter about 80 nm. A resonance scattering spectroscopic method has been developed for the quantitative determination of human serum albumin (HSA) and casein. In the condition selected, the value of I₄₇₀ nm was found linear to the concentration of protein in the range of 6.0×10^-8~5.0×10^-5g/mL, with detection limit about 2.0×10^-8~1.0×10^-7g/mL. The method has advantages of easy operation, high sensitivity, high accuracy and wide determinination range. Proteins in synthetic samples and human serum samples have been determined by this RS method with satisfactory results.
- phosphomolybdic acid,
- proteins,
- resonance Scattering spectroscopy,
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