使用C_(18)固相萃取膜-色质联用定量分析饮用水中痕量多环芳烃的初步研究

Quantitative Analysis of Trace Polycyclic Aromatic Hydrocarbons in Drinking Water With C_(18)-Solid-Phase Extraction-Gas Chromatography/Mass Spectrometry

参照美国EPA525.1方法,C_(18)-固相萃取膜萃取饮用水中的有机物,利用GC/MS法鉴定多环芳烃(PAHs),使用16种多环芳烃混合标准样绘制标准曲线,以内标法对PAHs进行定量分析.采用本方法研究某水厂经过深度处理后的出厂水中的7种多环芳烃的含量,PAHs的平均回收率为94.0%～97.7%.检测限为0.001μg/L.

Referring to the quality assurance and quality control procedures of U. S. EPA method 525 .1, extracting organic matter from drinking water with C18-solid phase extraction disk. The polycyclic aromatic hydrocarbons (PAHs) fraction was identified by GC-MSD. The standard curves were figured out using mixed standards of 16 PAHs, and the internal standard method was applied for the quantitative analysis of PAHs. The amount of PAHs in drinking water of a water plant was detected with this method. The average recoveries of PAHs were between 94.0% and 97.7% , the detection limit for 7 PHAs was 0.001pg/L.