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大气细粒子中阴离子表面有机活性物质分析方法的优化

于彦婷 李 红 张庆竹 白英臣 段鹏丽 张 凯 李 雷

于彦婷, 李 红, 张庆竹, 白英臣, 段鹏丽, 张 凯, 李 雷. 大气细粒子中阴离子表面有机活性物质分析方法的优化[J]. 环境科学研究, 2014, 27(6): 575-581. doi: 10.13198/j.issn.1001-6929.2014.06.02
引用本文: 于彦婷, 李 红, 张庆竹, 白英臣, 段鹏丽, 张 凯, 李 雷. 大气细粒子中阴离子表面有机活性物质分析方法的优化[J]. 环境科学研究, 2014, 27(6): 575-581. doi: 10.13198/j.issn.1001-6929.2014.06.02
YU Yan-ting, LI Hong, ZHANG Qing-zhu, BAI Ying-chen, DUAN Peng-li, ZHANG Kai, LI Lei. Optimization of Analytical Methods for Determining Anionic Surface Organic Active Substances in Atmospheric Fine Particles[J]. Research of Environmental Sciences, 2014, 27(6): 575-581. doi: 10.13198/j.issn.1001-6929.2014.06.02
Citation: YU Yan-ting, LI Hong, ZHANG Qing-zhu, BAI Ying-chen, DUAN Peng-li, ZHANG Kai, LI Lei. Optimization of Analytical Methods for Determining Anionic Surface Organic Active Substances in Atmospheric Fine Particles[J]. Research of Environmental Sciences, 2014, 27(6): 575-581. doi: 10.13198/j.issn.1001-6929.2014.06.02

大气细粒子中阴离子表面有机活性物质分析方法的优化

doi: 10.13198/j.issn.1001-6929.2014.06.02
基金项目: 国家自然科学基金面上项目(41175111);中国科学院战略性先导科技专项(B类)(XDB05010200);国家环境保护公益性行业科研专项(201109005)

Optimization of Analytical Methods for Determining Anionic Surface Organic Active Substances in Atmospheric Fine Particles

  • 摘要: 为优化大气细粒子中阴离子表面有机活性物质的亚甲蓝分光光度法和乙基紫分光光度分析法,分别从样品前处理和分析测定两方面对分析方法进行优化,并采用2种优化方案对北京市大气细粒子样品进行分析测定. 结果表明:①2种优化方案的最佳超声提取频率、最佳初始水浴温度和最佳超声提取时间均分别为40 Hz、30 ℃和35 min;②亚甲蓝优化方案的最佳显色剂使用量为0.70 mg,其中中性亚甲蓝和酸性亚甲蓝使用量均为0.35 mg,最佳静置时间为30~45 min;③乙基紫优化方案的最佳显色剂使用量为0.098 mg,最佳静置时间为30 min,最佳辅助性试剂使用量分别为pH=5的醋酸盐缓冲液0.4 mL,乙二胺四乙酸二钠10 μmol,硫酸钠0.25 mmol. 采用2个优化方案测得的北京市大气细粒子样品中ρ(MBAS)(MBAS为亚甲蓝活性物质)和ρ(EVAS)(EVAS为乙基紫活性物质)分别为0.14~0.39和0.14~0.47 μg/m3. 与亚甲蓝优化方案相比,乙基紫优化方案的试验操作更简便、标准曲线线性关系更好,更适合大气细粒子中阴离子表面有机活性物质的测定.

     

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出版历程
  • 收稿日期:  2013-10-09
  • 修回日期:  2014-03-07
  • 刊出日期:  2014-06-25

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