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| 加速溶剂萃取-高效液相色谱法测定环境空气中的苯并(a)芘 |
| The Determination of B(a)P in Ambient Air by Accelerated Solvent Extractor High Performance Liquid Chromatography |
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| DOI： |
| 中文关键词: 苯并(a)芘 加速溶剂萃取 高效液相色谱法 环境空气 |
| 英文关键词: Benzo(a)pyrene ASE HPLC Ambient air |
| 基金项目:江苏省环境监测基金资助项目（1006） |
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| 中文摘要: |
| 采用加速溶剂萃取-高效液相色谱法荧光检测器测定环境空气中的苯并(a)芘，以乙腈/水为流动相，检测器激发波长为290 nm，发射波长为430 nm。方法线性良好，检出限为0.08 μg/L，当采样体积为1 080 m3时，最低检测质量浓度为3×10-7 μg/m3（标准状态下），实际样品加标回收率为87.2%～109%。与超声波萃取法相比，两种方法回收率相近，而加速溶剂萃取法乙腈用量更少。 |
| 英文摘要: |
| Benzo(a)pyrene［B(a)P］ in ambient air was determined by accelerated solvent extractor (ASE)-HPLC. B(a)P was separated by reversed phase HPLC under a gradient elution with acetonitrile and water as mobile phase and detected by fluorescence detector with an excitation wavelength 290 nm and detection wavelength 430 nm. When sampling volume was 1 080 m3, the minimum detection concentrations was 3×10-7 μg/m3. The recoveries of B(a)P by ASE were 87.2% ～ 109%. Both ASE and ultrasonic extraction (UA) had high extraction efficiency. Compared with UA, ASE showed the advantages of low acetonitrile consumption and environment friendliness. |
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