摘要
建立了测定5-磺基水杨酸的流动注射化学发光新方法。研究了影响化学发光强度的因素,并初步探讨了可能的发光机理。在最佳化学发光条件下,化学发光强度与5-磺基水杨酸浓度在5.0×10-8～2.0×10-5mol/L范围内呈良好的线性关系,检出限为1.0×10-8mol/L,对5.0×10-6mol/L的5-磺基水杨酸平行测定9次,其相对标准偏差为2.7%。该法可用于强力霉素废水中5-磺基水杨酸的测定。
A new flow-injection chemiluminescence method for the determination of 5-sulfosalicylic acid was proposed.Various factors affected the chemiluminescence signal were investigated and the possible mechanism was also studied.Under the optimum conditions,the linear range for the determination of 5-sulfosalicylic acid was 5.0×10-8-2.0×10-5 mol/L with a detection limit（S/N=3） of 1.0×10-8 mol/L.The relative standard deviation was 2.7% for 5.0×10-6 mol/L 5-sulfosalicylic acid solution in nine repeated measurements.The method was successfully applied to the determination of 5-sulfosalicylic acid in the waste water of doxycycline.
出处
《应用化学》
CAS
CSCD
北大核心
2013年第4期469-473,共5页
Chinese Journal of Applied Chemistry
基金
商洛学院资助项目(08SKY031
08SKY030)
关键词
流动注射
化学发光
二氯荧光素
磺基水杨酸
flow-injection
chemiluminescence
dichlorofluorescein
sulfosalicylic acid
