摘要
颗粒物已成为一些城市大气的首要污染物。由于准确测定大气颗粒物的化学组成难度大、技术要求高,为了确保测量结果的准确度和溯源性,需要与之相近的标准物质。从大气颗粒物标准物质候选物来源组成、样品采集、制备技术、特性量组分与分析技术等方面,梳理了国内外相关研究进展。分析了我国大气颗粒物标准物质存在的基体类型少、采样制备技术落后、样品短缺等问题。结合国外大气颗粒物标准物质研究经验,以我国生态环境监测与治理修复重大需求为导向,从标准物质的代表性和实用性角度出发,探索切实可行的研究思路。创新性提出基于大气可吸入颗粒物质组成和来源解析,针对性采集研究区内各种主要源物质,根据基体和含量特征要求,通过对源物质的组合制备,获得一系列目标含量候选物样品的方法。
Atmospheric particulate matter has become the primary pollutant of urban air. Due to the difficulty and high technical requirements of accurately determining the chemical composition of atmospheric particulate matter, corresponding reference materials are needed to ensure the accuracy and traceability of the measurement results. This article summarized the research progress of atmospheric particulate reference materials domestic and overseas in terms of source composition, sample collection, preparation technology, target components and analysis technics. The problems with domestic reference materials of atmospheric particulates were analyzed, including a few matrix types, backward sampling and preparation technology, and shortage of samples. Based on the foreign research experience and China’s major needs for environmental monitoring and governance, research designs were made to ensure the representativeness and practicability of reference materials of atmospheric particulates. The innovation is that based on the composition and source analysis results of atmospheric particulate matter, main source substances should be collected in the study area, and the combination of source substances will be prepared according to the target matrix and content requirements, finally a series of target content candidates sample will be obtained.
作者
潘含江
顾铁新
刘妹
杨榕
赵凯
顾雪
PAN Han-jiang;GU Tie-xin;LIU Mei;YANG Rong;ZHAO Kai;GU Xue(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Science,Langfang 065000,China)
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2022年第12期3659-3664,共6页
Spectroscopy and Spectral Analysis
基金
中国地质科学院基本科研业务费项目(AS2019J03)
国家重点研发计划项目(2021YFC2903004)资助。
关键词
标准物质
大气颗粒物
成分分析
研究进展与思路
Reference material
Atmospheric particulates
Component analysis
Research progress and design
