DETERMINATION OF PEROXYACETIC ACID USING HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH EXTERNAL CALIBRATION

被引:54
作者
PINKERNELL, U
KARST, U
CAMMANN, K
机构
[1] UNIV MUNSTER,LEHRSTUHL ANALYT CHEM,D-48149 MUNSTER,GERMANY
[2] UNIV MUNSTER,INST CHEM & BIOSENSOR,D-48149 MUNSTER,GERMANY
关键词
D O I
10.1021/ac00087a028
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new method for the determination of peroxyacetic acid (PAA) in aqueous solutions is described. Methyl p-tolylsulfide (MTS) is oxidized by PAA, forming the corresponding methyl p-tolylsulfoxide sulfoxide (MTSO), which can be separated easily by high-performance liquid chromatography on a reversed-phase column and detected by ultraviolet spectroscopy at a wavelength of 230 nm. MTSO is a commercially available solid substance which can be used as an external standard for calibration. Therefore, calibration with the unstable PAA can be avoided. This method is characterized by a high reproducibility, low detection limits at 4 x 10(-7) mol/L (30 mu g/L), an applicable concentration range of more than two decades, and negligible cross reactivity toward hydrogen peroxide.
引用
收藏
页码:2599 / 2602
页数:4
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