全自动流动注射法测定PM_(2.5)中的水溶性铵离子Determination of Water-soluble Ammonium Ions in PM_(2.5) by Fully Automated Flow Injection Analysis
周梅玲;王志强;王余萍;
摘要(Abstract):
目的建立全自动流动注射分析仪测定PM_(2.5)中铵离子的方法。方法将采集空气细颗粒物(PM_(2.5))的石英滤膜样品经超纯水超声浸提后,离心,取上层溶液稀释后,进流动注射仪测定铵离子质量浓度。结果在超声水浴温度为20℃,超声时间为30 min,缓冲溶液p H=5.2,流动注射仪反应温度为50℃的最佳优化条件下,铵离子质量浓度的标准曲线在(0~1.0) mg/L范围内线性良好,线性相关系数为0.999 9;采样体积为135 m3(标准状况)时,方法检出限为0.026μg/m3;样品低、中、高浓度加标回收率为90.0%~110%;相对标准偏差RSD为1.0%~4.1%。结论该方法精密度和准确度较高,适用于环境空气颗粒物PM_(2.5)样品中水溶性铵离子的分析测试。
关键词(KeyWords): 流动注射仪;细颗粒物;水溶性铵离子
基金项目(Foundation):
作者(Author): 周梅玲;王志强;王余萍;
Email:
DOI: 10.13421/j.cnki.hjwsxzz.2020.05.019
参考文献(References):
- [1]文彬,孔少飞,银燕,等.秋季南通近海大气气溶胶水溶性离子粒径分布特征[J].中国环境科学,2014,34(1):49-57.(In English:Wen B,Kong SF,Yin Y,et al. Size distribution of water-soluble ions in aerosol from an offshore site of Nantong in autumn[J]. China Environ Sci,2014,34(1):49-57.)
- [2]杨留明,王申博,郝祺,等.郑州市PM2. 5中水溶性离子特征及来源分析[J].环境科学,2019,40(7):2977-2984.(In English:Yang LM,Wang SB,Hao Q,et al. Characteristics and source analysis of water-soluble ions in PM2. 5in Zhengzhou[J].Environ Sci,2019,40(7):2977-2984.)
- [3]张棕巍,胡恭任,于瑞莲,等.厦门市大气PM2. 5中水溶性离子污染特征及来源解析[J].中国环境科学,2016,36(7):1947-1954.(In English:Zhang ZW,Hu GR,Yu RL,et al.Characteristics and sources apportionment of water-soluble ions in PM2. 5of Xiamen City,China[J]. China Environ Sci,2016,36(7):1947-1954.)
- [4]李波.杭州市PM2. 5二次离子特征及区域空气污染传输影响研究[D].杭州:浙江工业大学,2017.(In English:Li B. Research on the characteristics of secondary ions of PM2. 5and the impact of regional air pollution transport in Hangzhou[D]. Hangzhou:Zhejiang University of Technology,2017.)
- [5]中华人民共和国环境保护部.HJ 800-2016环境空气颗粒物中水溶性阳离子(Li+、Na+、NH4+、K+、Ca2+、Mg2+)的测定离子色谱法[S].北京:中国环境科学出版社,2016:1-11.(In English:Ministry of Environmental Protection of the People's Republic of China. HJ 800-2016 Ambient air-determination of the water soluble cations(Li+、Na+、NH4+、K+、Ca2+、Mg2+)from atmospheric particles-Ion chromatography[S]. Beijing:China Environmental Science Press,2016:1-11.)
- [6]黄虹,贺冰洁,熊震宇,等.南昌市PM2. 5中铵盐及其气态前体物的分布特征与转化机制[J].地球环境学报,2018,9(4):334-347.(In English:Huang H,He BJ,Xiong ZY,et al. Distribution and conversion mechanism of ammonium in PM2. 5and gaseous precursors in Nanchang[J]. J Earth Environ,2018,9(4):334-347.)
- [7]潘志流,马洁健,黄菊.哈希流动注射分析仪测定地表水中氨氮[J].城市建设理论研究(电子版),2015(8):4876-4877.
- [8]原晖.连续流动注射方法在测定大连市地表水水质中的应用[J].水资源开发与管理,2019(4):45-48.(In English:Yuan H. Application of continuous flow injection method in determining surface water in Dalian city[J]. Global Seabuckthorn Res Dev,2019(4):45-48.)
- [9]张宇文.HJ 665-2013水中氨氮的不确定度评定[J].广东化工,2017,44(12):265-266.(In English:Zhang YW. Uncertainty evaluation of ammonia nitrogen in HJ 665-2013 water[J].Guangdong Chem Ind,2017,44(12):265-266.)
- [10]徐浩,李晨,赵新颖.流动注射法测定水中的高锰酸盐指数[J].分析仪器,2016(S1):28-31.
- [11]皇甫咪咪,曲建强,李燕,等.水杨酸钠—次氯酸钠法海水氨氮快速检测方法研究[J].中国环境监测,2017,33(3):126-132.(In English:Huangfu MM,Qu JQ,Li Y,et al. Study on the rapid detection of ammonia nitrogen in seawater using sodium salicylate and sodium hypochlorite method[J]. Environ Monit China,2017,33(3):126-132.)