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热解法分离大气颗粒物中几种主要铵盐

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伦小秀, 张晓山, 牟玉静. 热解法分离大气颗粒物中几种主要铵盐[J]. 环境化学, 2004, 23(1): 17-20.
引用本文: 伦小秀, 张晓山, 牟玉静. 热解法分离大气颗粒物中几种主要铵盐[J]. 环境化学, 2004, 23(1): 17-20.
shu
LUN Xiao-xiu, ZHANG Xiao-shan, MOU Yu-jing. THERMAL DISSOCIATION METHOD FOR SEPARATION OF AMMONIUM SALTS IN ATMOSPERIC PARTICULATES[J]. Environmental Chemistry, 2004, 23(1): 17-20.
Citation: LUN Xiao-xiu, ZHANG Xiao-shan, MOU Yu-jing. THERMAL DISSOCIATION METHOD FOR SEPARATION OF AMMONIUM SALTS IN ATMOSPERIC PARTICULATES[J]. Environmental Chemistry, 2004, 23(1): 17-20.
shu

热解法分离大气颗粒物中几种主要铵盐

  • 1.

    中国科学院生态环境研究中心, 北京, 100085

  • 基金项目:

    中国科学院知识创新方向性项目(KZCX3-SW-424,KZCX2-204)资助

THERMAL DISSOCIATION METHOD FOR SEPARATION OF AMMONIUM SALTS IN ATMOSPERIC PARTICULATES

  • 1.

    Research Center for Eco Environmental Sciences, Chinese Academy of Science, Beijing, 100085

  • Fund Project:

  • 摘要: 本文实验了分离大气颗粒物样品中硫酸铵、硝酸铵、氯化铵的热解方法.在70℃的条件下,经过3h,硝酸铵和氯化铵就已基本挥发完全,而硫酸铵没有明显的损失.利用该方法,分离测定了一些大气颗粒物样品中的硫酸铵、硝酸铵、氯化铵及相应的其它金属盐.实验表明,热解法对于分离表征大气颗粒物中的铵盐是简单和实用的.
    Abstract: A method for the separate determination of inorganic ammonium salts and other salts in atmos pheric aerosols has been developed.It was conducted in a multi layer stainless steel filter in a GC oven with temperature at 70℃.In three hour,NH4NO3 and NH4Cl can be evaporated completely from the teflon filter,and ammonium sulfate and other salts were still kept on the filter.Field measurements for the separate determination of inorganic ammonium salts and other salts in atmos phere aerosols in Beijing were performed using this method.Results showed this method could be used for the separate determination of inorganic ammonium salts and the other salts in atmospheric aerosols.
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  • [1] Yao X,Chan C K,Fang M et al.,The Water-Soluble Ionic Composition of PM2.5 in Shanghai and Beijing,China.Atmospheric Environment,2002,36∶4223-4234
    [2] Sturges W T,Harrison R M,Thermal Speciation of Atmospheric Nitrate and Chloride:a Critical Evaluation.Environ.Sci.Technol.,1998,22∶1305-1311
    [3] Possanzini M,Masia P,Palo V D,Speciation of Ammonium-Containing Species in Atmospheric Aerosols.Atmospheric Environment,1992,26A∶1995-2000
    [4] Weatherburn M W,Phenol-Hypochlorite Reaction for Determination of Ammonia.Analyt.Chem.,1967,39∶971-974
    [5] He K,Yang F,Ma Y et al.,The Characteristics of PM 2.5 in Beijing,China.Atmospheric Environment.2001,35∶4959-4970
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  • 收稿日期:  2003-08-30
伦小秀, 张晓山, 牟玉静. 热解法分离大气颗粒物中几种主要铵盐[J]. 环境化学, 2004, 23(1): 17-20.
引用本文: 伦小秀, 张晓山, 牟玉静. 热解法分离大气颗粒物中几种主要铵盐[J]. 环境化学, 2004, 23(1): 17-20.
shu
LUN Xiao-xiu, ZHANG Xiao-shan, MOU Yu-jing. THERMAL DISSOCIATION METHOD FOR SEPARATION OF AMMONIUM SALTS IN ATMOSPERIC PARTICULATES[J]. Environmental Chemistry, 2004, 23(1): 17-20.
Citation: LUN Xiao-xiu, ZHANG Xiao-shan, MOU Yu-jing. THERMAL DISSOCIATION METHOD FOR SEPARATION OF AMMONIUM SALTS IN ATMOSPERIC PARTICULATES[J]. Environmental Chemistry, 2004, 23(1): 17-20.
shu

热解法分离大气颗粒物中几种主要铵盐

  • 1. 中国科学院生态环境研究中心, 北京, 100085
  • 收稿日期:  2003-08-30
基金项目:

中国科学院知识创新方向性项目(KZCX3-SW-424,KZCX2-204)资助

摘要: 本文实验了分离大气颗粒物样品中硫酸铵、硝酸铵、氯化铵的热解方法.在70℃的条件下,经过3h,硝酸铵和氯化铵就已基本挥发完全,而硫酸铵没有明显的损失.利用该方法,分离测定了一些大气颗粒物样品中的硫酸铵、硝酸铵、氯化铵及相应的其它金属盐.实验表明,热解法对于分离表征大气颗粒物中的铵盐是简单和实用的.

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