| 气相色谱法测定工作场所空气中芳香族硝基化合物的方法改进 |
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| 引用本文： | 刘亚攀,王敏,杨莉,江金凤.气相色谱法测定工作场所空气中芳香族硝基化合物的方法改进[J].现代预防医学,2020,0(23):4260-4263. |
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| 作者姓名： | 刘亚攀 王敏 杨莉 江金凤 |
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| 作者单位： | 武汉市职业病防治院卫生检验科，湖北 430015 |
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| 摘 要： | 目的 改进工作场所空气中芳香族硝基化合物的气相色谱测定方法。方法 硅胶管和超细玻璃纤维滤纸采集的芳香族硝基化合物，分别用丙酮和5%乙醇-正己烷解吸和洗脱，DB-17MS毛细管色谱柱分离，电子捕获检测器检测，外标法定量。结果 9种芳香族硝基化合物均在9.5min内出峰，分离良好，平均解吸或洗脱效率为93.6%~100.9%，检出限范围0.0015~2.5μg/ml，相对标准偏差0.5%~3.6%。结论 改进后的方法精密度和准确度高，适用于工作场所空气中芳香族硝基化合物的测定。
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| 关 键 词： | 工作场所空气 芳香族硝基化合物 气相色谱法 |
Improvement of determination method for nitroaromatic compoundsin the air of workplace by gas chromatography |
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| LIU Ya-pan,WANG Min,YANG Li,JIANG Jin-feng.Improvement of determination method for nitroaromatic compoundsin the air of workplace by gas chromatography[J].Modern Preventive Medicine,2020,0(23):4260-4263. |
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| Authors: | LIU Ya-pan WANG Min YANG Li JIANG Jin-feng |
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| Affiliation: | Wuhan Prevention and Treatment Center for Occupational Diseases, Wuhan, Hubei 430015, China |
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| Abstract: | Objective To improve the determination method of nitroaromatic compounds in workplace air by gas chromatography. WTHZ]Methods The target analytes were collected by silica gal sampling tubes or glass fiber filters, desorbed with acetone or eluted with 5% ethanol-n-hexane, separated by DB-17MS capillary column, detected by electron capture detector, and quantified by external standard method. WTHZ]Results The 9 nitroaromatic compounds were well separated within 9.5min.The average desorption or elution efficiencies were 93.6%-100.9%. The detection limits were 0.0015-2.5μg/ml. The relative standard deviations were 0.5%-3.6%. WTHZ]Conclusion The improved method is accurate, reliable and can be applied to the determination of nitroaromatic compounds in workplace air. |
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| Keywords: | Workplace air Nitroaromatic compounds Gas chromatography |
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