摘要
研究了固相萃取、反相高效液相色谱紫外可变波长分离测定水中美国环保局(US EPA)规定的16个优先监测多环芳烃(PAHs)污染物的方法。选择不同的紫外波长消除或减小水样品中基体对16个PAHs检测的干扰,改善了加标回收率。当16个PAHs的紫外检测波长被优化选择时,它们的加标回收率在79.3%～119%之间。用固相萃取法测定水样中PAHs的检测限在10-2～10-3μg/L之间。使用标准加入法测定了纯水中16个PAHs,其回归系数r在0.994 4～0.991 1之间(萘除外,r=0.910 3)。在水样中检测到了苊、菲和苯并[a]蒽,它们的浓度分别为(1.4±0.2)(、3.8±2.7)和(5.9±3.5)μg/L。
A method using reversed phase high-performance liquid chromatography with ultraviolet detection of variable wavelength was studied for determination of United States Environmental Protection Agency（US EPA） 16 priority monitoring polynuclear aromatic hydrocarbons（PAHs）. Selection of different UV absorption wavelength eliminated or reduced the interferences of the sample matrixes on the determination of the 16 PAHs, improved the recoveries of addition standard. When the UV detection wavelengths for the 16 PAHs were selected to the optimum, their recoveries of the additional standard varied from 79.3% to 119 %. The detection limits for the determination of the PAHs in water sample were at the level of 10^-2-10^-3 μg/L. The standard addition method was ap- plied to determine the 16 PAHs in the pure water sample. The regression coefficients （r） were in the range of 0.994 4-0.991 1 except for naphthalene, which was 0.910 3. It was found that acenaphthene, phenanthrene and benzo [a] anthracene existed in the pure water sample and their concentrations were （1.4±0.2）,（3.8±2.7） and （5.9±3.5） μg/L, respectively.
出处
《苏州科技学院学报（工程技术版）》
CAS
2006年第4期43-48,共6页
Journal of Suzhou University of Science and Technology （Engineering and Technology）
基金
江苏省环境科学与工程重点实验室项目(KJS2103)
关键词
多环芳烃
固相萃取
反相高效液相色谱
可变波长紫外检测
水
polycyclic aromatic hydrocarbons
solid phase extraction
reverse phase high-peformance liquid chromatography
ultraviolet detection with variable wavelength
water
