Citation:
JIANG Hong, HU Xiao-Li. Fading Reaction of Acidic Dyes with Spectinomycin and Its Application to Analysis of Spectinomycin[J]. Chinese Journal of Applied Chemistry,
;2008, 25(4): 419-423.
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Under acidic condition,spectinomycin (SPM) was reacted with acid chrome blue K(ACBK),evans blue (EVB) or pontamine sky blue (POB) to form red or blue ion association complexes showing obvious fading peaks.The maximum fading wavelengths were at 522,608 and 626 nm,respectively,and the linear ranges were 0.2~5.0 mg/L (ACBK) and 0.1~5.4 mg/L (EVB or POB system),and their apparent molar absorptivities (ε) were 1.45×104 L/(mol·cm),1.70×104 L/(mol·cm) and 6.00×103 L/(mol·cm),respectively.Under certain concentrations,the correlation of the spectinomycin concentration with the fading degree was found to obeyed Lombard Beer's law,and a new spectrophotometric method for the determination of spectinomycin (SPM) was thus developed.The optimum reaction conditions,the precision and reliability of methed and their applications were studied.The method was used for the determination of spectinomycin in injection samples and the recoveries of them were 100%,98.8% and 99.3%,respectively.
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