摘要
挥发性有机物是当前阶段环境污染治理、环境监管监测主要目标物之一。GC-FID是目前使用最广泛的一种监测方法,具有检测范围广、分析周期短的优点。但由于同一检测器对不同物质具有不同的响应值,或是加强或是减弱,因此不能直接用响应值来计算物质的量。校正因子的引入可以有效解决因不同物质的响应值不同而带来的测量误差。文中以基于GC-FID的便携式挥发性有机物监测仪为例,通过对比校正因子引入前、后测量结果误差的大小,为挥发性有机物的准确监测提供参考。
Volatile organic compounds are one of the main targets of environmental pollution control,environmental supervision and monitoring at the current stage.GC-FID is the most widely used monitoring method,with the advantages of wide detection range and short analysis period.However,because the same detector has different response values to different substances,or it is strengthened or weakened,so the response value cannot be directly used to calculate the amount of substances.The introduction of correction factors can effectively solve the measurement error caused by the different response values of different substances.This paper takes the portable volatile organic compounds monitor based on GC-FID as an example to correct the error of the measurement results before and after the introduction of correction factors,to provide a reference for the accurate monitoring of volatile organic compounds.
作者
班继民
李建鹏
BAN Jimin;LI Jianpeng(Henan Institue of Metrology,Zhengzhou 450000,China)
出处
《中国测试》
CAS
北大核心
2023年第S02期61-64,共4页
China Measurement & Test
关键词
校正因子
GC-FID
挥发性有机物监测仪
总烃
correction factors
GC-FID
volatile organic compounds monitor
total hydrocarbons
