摘要
VOCs不仅本身具有较强毒性,还是影响中国区域大气污染的重要前兆和参与者,国内已有一些检测VOCs的现行标准,但由于现实检测情况比较复杂,很难严格按照标准方法执行。本实验通过优化P&T参数和GC-MS的条件,建立了一种准确测定固定污染源废气中VOCs的方法。该方法的线性相关拟合度较高,所测物质线性相关系数均在0.9970以上,相关化合物的检出限为0.001-0.027mg/m^(3),相对标准偏差(RSD)<7.98%,可满足相关标准的要求。
VOCs not only have strong toxicity,but are also important precursors and participants that affect the regional air pollution in my country.There are some existing standards for testing VOCs in China,but due to the complicated actual testing situation,it is difficult to strictly follow the standard methods..This experiment established a method for accurately determining VOCs in exhaust gas from stationary sources by optimizing P&T parameters and GC-MS conditions.The method has a high degree of linear correlation fitting.The linear correlation coefficients of the tested substances are all above 0.9970,the detection limit of related compounds is 0.001-0.027 mg/m^(3),and RSD is<7.98%,which can meet the requirements of relevant standards.
作者
叶继
Ye Ji(Maoming Environmental Protection Monitoring Station,Maoming 525000,China)
出处
《粘接》
CAS
2021年第8期50-53,共4页
Adhesion
