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气溶胶水溶性无机物及有机物的离子色谱测定

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余学春, 贺克斌, 马永亮, 段凤魁, 杨复沫, 郑爱华, 赵承易. 气溶胶水溶性无机物及有机物的离子色谱测定[J]. 环境化学, 2004, 23(2): 218-222.
引用本文: 余学春, 贺克斌, 马永亮, 段凤魁, 杨复沫, 郑爱华, 赵承易. 气溶胶水溶性无机物及有机物的离子色谱测定[J]. 环境化学, 2004, 23(2): 218-222.
shu
YU Xue-chun, HE Ke-bin, MA Yong-liang, DUAN Feng-kui, YANG Fu-mo, ZHENG Ai-hua, ZHAO Cheng-yi . DETERMINATION OF WATER-SOLUBLE INORGANIC AND ORGANIC SPECIES OF AEROSOLS[J]. Environmental Chemistry, 2004, 23(2): 218-222.
Citation: YU Xue-chun, HE Ke-bin, MA Yong-liang, DUAN Feng-kui, YANG Fu-mo, ZHENG Ai-hua, ZHAO Cheng-yi . DETERMINATION OF WATER-SOLUBLE INORGANIC AND ORGANIC SPECIES OF AEROSOLS[J]. Environmental Chemistry, 2004, 23(2): 218-222.
shu

气溶胶水溶性无机物及有机物的离子色谱测定

  • 1.

    清华大学环境科学与工程系, 北京, 100084;

  • 2.

    北京师范大学分析测试中心, 北京, 100875

  • 基金项目:

    通用公司资助项目

DETERMINATION OF WATER-SOLUBLE INORGANIC AND ORGANIC SPECIES OF AEROSOLS

  • 1.

    Department of Environmental Science &Engineering, Tsinghua University, Beijing, 100084;

  • 2.

    Analytical &Testing Center, Beijing Normal University, Beijing, 100875

  • Fund Project:

  • 摘要: 利用离子色谱技术同时测定大气气溶胶中的水溶性有机物(WSOC)与各种无机成分,检测出12种无机离子(F-,Cl-,NO2-,NO3-,SO32-,SO42-,PO43-,Na+,NH4+,K+,Mg2+,Ca2+)及7种WSOC(甲酸、乙酸、甲磺酸、乙二酸、丙二酸、丁二酸、戊二酸).该方法对无机离子的线性范围为0.01-1000μg·m-3,有机物的线性范围为0.005-10μg·m-3,相关系数除NH4+以外均高于99.9%,最低检测限为0.0001-0.0005μg·m-3,相对标准偏差为0.43-1.32%.利用该技术,对北京市2001-2002年度大气PM2.5中水溶性物种的浓度水平进行了测定.结果表明,北京市PM2.5中主要的水溶性组分为SO2-4,NO3-和NH4+,其浓度水平分别为11.1,7.8和6.2μg·m-3,各占PM2.5质量的10.6%,7.4%及5.7%,而WSOC的浓度水平为0.011-0.118μg·m-3,占PM2.5质量浓度的0.01-0.1%,其中,乙二酸的浓度最高,其次为乙酸、丁二酸,丙二酸等.
    Abstract: This paper conducted a study of determination of the water-soluble inorganic and organic species of aerosols in simultaneity by use of ion chromatography technology.Based on this,twelve inorganic ions(F-,Cl-,NO2-,NO3-,SO32-,SO42-,PO43-,Na+,NH4+,K+,Mg2+,Ca2+)and seven WSOC(formate,acetate,methylsulfonate,oxalate,malonate,succinate,glutarate)of aerosols in city were quantitatively determined.The linear concentrations ranged from 0.01μg·m-3 to 1000μg·m-3 for inorganic species and from 0.005μg·m-3 to 10μg·m-3 for organic species(r=0.999—0.9999);The RSD were 0.43—1.32% and the detection limits were from 0.0001μg·m-3 to 0 0005μg·m-3.The results showed that SO42-,NO3- and NH4+ were the dominant ionic species of PM2.5 in Beijing,which were 11.1μg·m-3,7.8μg·m-3 and 6.2μg·m-3 for the yearly averaged concentrations and accounted for 10.6%,7.4% and 5.7% of the total mass of PM2.5,respectively.WSOC of PM2.5 in Beijing exhibited an annual concentration range of 0.011—0.118μg·m-3 and possessed 0.01—0.1% of PM2.5 mass,among which oxalate was the most abundant species,followed by acetate,succinate and malonate.
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  • [1] Rivera-Carpio C A,Corrigan C E,Novakov T et al.,Derivation of Contributions of Sulfate and Carbonaceous Aerosols to Cloud Condensation Nuclei from Mass Size Distributions.Journal of Geophysical Research,1996,101:19483-19493
    [2] Limbeck A,Puxbaum P,Organic Acids in Continental Background Aerosols.Atmospheric Environment,1999,33:1847-1852
    [3] Khwaja H A,Atmospheric Concentrations of Carboxylic Acids and Related Compounds at a Semi-urban Site.Atmospheric Environment,1995,29:127-139
    [4] Sempere R,Kawamura K,Comparative Distributions of Carboxylic Acids and Related Polar Compounds in Snow,Rain and Aerosols from Urban Atmosphere.Atmospheric Environment,1994,28:449-459
    [5] Rogge W F,Mazurek M A,Cass G R,Quantification of Urban Organic Aerosols at a Molecular Level:Identification,Abundance and Seasonal Variation.Atmospheric Environment.1993,27:1309-1330
    [6] 许士玉,胡敏,曾立民.气溶胶水溶性有机物(WSOC)中二元羧酸的测定.环境化学,2002,21(1):83-86
    [7] He K,Yang F,Ma Y et al.,The Characteristics of PM2.5 in Beijing,China.Atmospheric Environment,2001,35:4959-4970
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  • 收稿日期:  2003-04-22
余学春, 贺克斌, 马永亮, 段凤魁, 杨复沫, 郑爱华, 赵承易. 气溶胶水溶性无机物及有机物的离子色谱测定[J]. 环境化学, 2004, 23(2): 218-222.
引用本文: 余学春, 贺克斌, 马永亮, 段凤魁, 杨复沫, 郑爱华, 赵承易. 气溶胶水溶性无机物及有机物的离子色谱测定[J]. 环境化学, 2004, 23(2): 218-222.
shu
YU Xue-chun, HE Ke-bin, MA Yong-liang, DUAN Feng-kui, YANG Fu-mo, ZHENG Ai-hua, ZHAO Cheng-yi . DETERMINATION OF WATER-SOLUBLE INORGANIC AND ORGANIC SPECIES OF AEROSOLS[J]. Environmental Chemistry, 2004, 23(2): 218-222.
Citation: YU Xue-chun, HE Ke-bin, MA Yong-liang, DUAN Feng-kui, YANG Fu-mo, ZHENG Ai-hua, ZHAO Cheng-yi . DETERMINATION OF WATER-SOLUBLE INORGANIC AND ORGANIC SPECIES OF AEROSOLS[J]. Environmental Chemistry, 2004, 23(2): 218-222.
shu

气溶胶水溶性无机物及有机物的离子色谱测定

  • 1.  清华大学环境科学与工程系, 北京, 100084;
  • 2.  北京师范大学分析测试中心, 北京, 100875
  • 收稿日期:  2003-04-22
基金项目:

通用公司资助项目

摘要: 利用离子色谱技术同时测定大气气溶胶中的水溶性有机物(WSOC)与各种无机成分,检测出12种无机离子(F-,Cl-,NO2-,NO3-,SO32-,SO42-,PO43-,Na+,NH4+,K+,Mg2+,Ca2+)及7种WSOC(甲酸、乙酸、甲磺酸、乙二酸、丙二酸、丁二酸、戊二酸).该方法对无机离子的线性范围为0.01-1000μg·m-3,有机物的线性范围为0.005-10μg·m-3,相关系数除NH4+以外均高于99.9%,最低检测限为0.0001-0.0005μg·m-3,相对标准偏差为0.43-1.32%.利用该技术,对北京市2001-2002年度大气PM2.5中水溶性物种的浓度水平进行了测定.结果表明,北京市PM2.5中主要的水溶性组分为SO2-4,NO3-和NH4+,其浓度水平分别为11.1,7.8和6.2μg·m-3,各占PM2.5质量的10.6%,7.4%及5.7%,而WSOC的浓度水平为0.011-0.118μg·m-3,占PM2.5质量浓度的0.01-0.1%,其中,乙二酸的浓度最高,其次为乙酸、丁二酸,丙二酸等.

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