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Citation: HU Xiao-Li, AN Lan-Xiang, LIU Shao-Pu, LIU Zhong-Fang, SONG Yan-Qi. Resonance Rayleigh Scattering Spectra of Interaction Between Isopoly Tungstic Acid-Amikacin and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, ;2009, 26(5): 588-592. shu

Resonance Rayleigh Scattering Spectra of Interaction Between Isopoly Tungstic Acid-Amikacin and Its Analytical Application

1.
School of Chemistry and Chemical Engineering, MOE Key Laboratory of Luminescence and Real-Time Analysis, Southwest University, Chongqing 400715

Corresponding author: HU Xiao-Li,
Received Date: 21 April 2008
Available Online: 19 June 2008
Fund Project: 国家自然科学基金(20475045) (20475045)重庆市重点实验室(西南大学)(CSTC,2006CA8006) (西南大学)(CSTC,2006CA8006)重庆市科委自然科学基金计划(CSTC,2007BB1359)资助项目 (CSTC,2007BB1359)

In a pH 0.65 ～ 1.10 HCl-NaAc buffer solution, isopoly tungstic acid(IPT) was reacted with amikacin(AMK) to form an ion-association complex, which resulted in great enhancement of resonance Rayleigh scattering(RRS) and the appearance of a new RRS spectrum.The maximum scattering peak was located at 340 nm.The scattering in tensity was proportional to the concentration of AMK in a range of 0.001 ×10 ^-6～0.08 ×10^-6 g/mL, based on which a new RRS method for the determination of AMK was established.Th emethod exhibited a high sensitivity and the detection limit(3σ) was 0.4 ×10^-9 g/mL.The RRS and absorption spectral characteristics and optimum reaction conditions of the system were discussed. Effects of coexisting substances were tested, and the results demonstrated that this method had a good selectivity.It was applied to the determination of AMK in human serum samples with satisfactory results.The reactionm echanism and reasons for RRS enhancement were discussed.
- amikacin,
- isopoly tungstic acid,
- resonance Rayleigh scattering,
- determination
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