固相萃取-高效液相色谱法检测水中硝基苯

Determination of Nitrobenzene in Water by Solid Phase Extraction Coupled with High Performance Liquid Chromatography

建立了用固相萃取-高效液相色谱法测定水中硝基苯含量的方法。结果表明，在添加量1.344-134．40μg／L范围内具有良好的线性关系（r=0．99992），回收率为90．18％～100．64％，相对标准偏差（RSD）小于7．95％，方法检出限为6．2×10^-4μg。可采用本方法检测实际水样。

The method for determination the nitrobenzene content in water by HPLC with solid phase extraction was established. The results showed that nitrobenzene had a good linear correlation （r=0. 99992） when it was added from 1. 344- 134.4 μg/L, its recovery was 90. 18%-100.64%, and relative standard deviation （RSD） was less than 7.95%, also the minimum detectable value was 6.2×10^-4 μg. This method could be applied to analysis the water samples.