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| HPLC和GC-MS法测定环境空气中醛酮类化合物比对分析 |
| Comparison of HPLC and GC-MS for the Determination of Aldehydes and Ketones in Ambient Air |
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| DOI： |
| 中文关键词: 醛酮类化合物 高效液相色谱法 气相色谱〖CD*2〗质谱法 比对分析 环境空气 |
| 英文关键词: Aldehydes and ketones High performance liquid chromatography Gas chromatography-mass spectrometry Comparative analysis Ambient air |
| 基金项目:国家重点研发计划基金资助项目（2017YFC0212206）；陕西省重点研发计划基金资助项目（2021ZDLSF05-07）；陕西省环境科学研究院2020年重点研发计划基金资助项目（HKY-2020-YF-017） |
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| 中文摘要: |
| 对2，4-二硝基苯肼吸附衍生-高效液相色谱（DNPH-HPLC）法和罐采样/气相色谱-质谱（GC-MS）法的测定条件进行优化，将两种方法测定环境空气中13种醛酮类化合物（OVOCs）的结果做比对分析。结果表明，HPLC法和GC-MS法均可实现一次进样13种OVOCs全分析，方法检出限分别为0.26μg/m3～1.39μg/m3和0.49μg/m3～1.10μg/m3，加标回收率分别为95.9%～111%和52.0%～138%。两种方法测定实际样品，检出组分的测定结果无显著性差异；HPLC法适合测定环境空气中低碳类（C1～C3）低浓度OVOCs，GC-MS法适合测定多碳类（C4～C8）低浓度OVOCs。 |
| 英文摘要: |
| 13 aldehydes and ketones (OVOCs) in ambient air were determined by 2,4-dinitrophenylhydrazine adsorption derivatization-high performance liquid chromatography(DNPH-HPLC) and canister collection/gas chromatography mass spectrometry (GC-MS). The determination conditions of the two methods were optimized and the measurements were compared. The results showed that both HPLC and GC-MS could achieve the analysis of 13 OVOCs in one injection. The method detection limits were 0.26μg/m3~1.39μg/m3 and 0.49μg/m3~1.10μg/m3, respectively. The recoveries were 95.9%~111% and 52.0%~138%, respectively. There was no significant difference in the results of detected components in practical samples between the two methods. HPLC was suitable for determining low concentration of low-carbon (C1~C3) OVOCs in ambient air, while GC-MS was suitable for determining low concentration of multiple carbon (C4~C8) OVOCs. |
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