水质分析用多组分挥发性有机物质量控制标准样品研究

房丽萍; 杨刚; 姜洋; 王伟; 刘海萍; 鲁炳闻; 田文

doi:10.7524/j.issn.0254-6108.2016.04.2015110303

环境化学

水质分析用多组分挥发性有机物质量控制标准样品研究

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房丽萍, 杨刚, 姜洋, 王伟, 刘海萍, 鲁炳闻, 田文. 水质分析用多组分挥发性有机物质量控制标准样品研究[J]. 环境化学, 2016, 35(4): 688-696. doi: 10.7524/j.issn.0254-6108.2016.04.2015110303

引用本文:

FANG Liping, YANG Gang, JIANG Yang, WANG Wei, LIU Haiping, LU Bingwen, TIAN Wen. Development of the certified reference material of volatile organic compounds[J]. Environmental Chemistry, 2016, 35(4): 688-696. doi: 10.7524/j.issn.0254-6108.2016.04.2015110303

Citation:

FANG Liping, YANG Gang, JIANG Yang, WANG Wei, LIU Haiping, LU Bingwen, TIAN Wen. Development of the certified reference material of volatile organic compounds[J]. Environmental Chemistry, 2016, 35(4): 688-696. doi: 10.7524/j.issn.0254-6108.2016.04.2015110303

水质分析用多组分挥发性有机物质量控制标准样品研究

1.
国家环境保护污染物计量和标准样品研究重点实验室(筹), 环境保护部标准样品研究所, 北京, 100029;
2.
北京化工大学, 北京, 100029
基金项目:
国家重大科学仪器设备开发专项(2012YQ060027)资助.

Development of the certified reference material of volatile organic compounds

1.
State Environmental Protection Key Laboratory of Environmental Pollutant Metrology and Reference Materials, Institute for Environmental Reference Materials, Ministry of Environmental Protection, Beijing, 100029, China;
2.
Beijing University of Chemical Technology, Beijing, 100029, China
Fund Project: Supported by National Key Scientific Instrument and Equipment Development Projects (2012YQ060027).

摘要: 本文研制了适合我国水质环境监测和科学研究需要的28种组分挥发性有机物质量控制标准样品.该样品采用分组称量方法制备,随机抽取15瓶样品对其进行均匀性研究,结果表明样品均匀性良好.在室温、4 ℃冷藏和-18 ℃冷冻的3种保存条件下,采用线性模型进行稳定性研究,标准样品在15个月的稳定性检验期间未发现不稳定变化趋势.检验结果表明,制备的28种挥发性有机物质量控制标准样品均匀性和稳定性良好.9家实验室将该标准样品稀释至纯水中1000倍后,采用吹扫捕集-气相色谱-质谱法进行联合定值,经统计分析处理评定出标准值和不确定度,特性量值在24.14—58.83 μg·L-1之间,不确定度在2.04—13.77 μg·L-1之间,可以满足挥发性有机物水质分析质量保证与质量控制的要求.
- 挥发性有机物 /
- 标准样品 /
- 制备 /
- 定值 /
- 不确定度
Abstract: This paper describes a method of developing CRM of 28 volatile organic compounds(VOCs) mixture in methanol for environmental monitoring. A good homogeneity was obtained by the testing for the 28 VOCs from 15 units selected by a random stratified scheme covering the whole batch, and 3 sub-samples were analyzed in each unit. At room temperature, 4 ℃ refrigeration and -18 ℃ freezing storage conditions, the concentration of 28 VOCs did not change during monitoring period of 15 months. The CRM was certified by 9 laboratories after the samples were diluted 1000 times with pure water. Based on the results from different analytical techniques including Puge & Trap/Gas-Chromatography/Mass spectrometry and Head-Space/Gas-Chromatography/Mass spectrometry by the 9 collaborating laboratories, values for 28 VOCs were in the range of 24.14—58.83 μg·L-1, expanded uncertainty of each VOC is 2.04—13.77 μg·L-1. The CRMs are suitable for VOCs monitoring in water and method validation.
- volatile organic compounds (VOCs) /
- certified reference material (CRM) /
- preparation /
- certification /
- uncertainty

[1]	CHARY N S, FERNANDEZ-ALBA A R. Determination of volatile organic compounds in drinking and environmental waters [J]. Trends in Analytical Chemistry, 2012,32:60-75.
[2]	姜洋, 房丽萍, 杨刚, 等. 水体中挥发性有机物分析方法研究进展[J]. 环境化学, 2015, 34(9): 1611-1618. JIANG Y, FANG L P, YANG G, et al. Analytical methods of volatile organic compounds in water samples[J]. Environmental Chemistry, 2015,34(9): 1611-1618(in Chinese).
[3]	刘玉龙, 夏凡, 张洪志. 挥发性有机污染物标准物质使用的短期稳定性评价[J]. 岩矿测试, 2012, 31(4):647-652. LIU Y L, XIA F, ZHANG H Z. The evaluation of short-term stability of opened stocks of certified reference materials in the analysis of volatile organic compounds[J]. Rock and Mineral Analysis, 2012,31(4): 647-652(in Chinese).
[4]	NEVES L A, ALMEIDA R R R, REGO E P, et al. Certified reference material of volatile organic compounds for environmental analysis: BTEX in methanol [J]. Anal Bioanal Chem, 2015,407(11):3225-3229.

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水质分析用多组分挥发性有机物质量控制标准样品研究

1. 国家环境保护污染物计量和标准样品研究重点实验室(筹), 环境保护部标准样品研究所, 北京, 100029;
2. 北京化工大学, 北京, 100029

收稿日期: 2015-11-03

基金项目:

国家重大科学仪器设备开发专项(2012YQ060027)资助.

关键词:

摘要: 本文研制了适合我国水质环境监测和科学研究需要的28种组分挥发性有机物质量控制标准样品.该样品采用分组称量方法制备,随机抽取15瓶样品对其进行均匀性研究,结果表明样品均匀性良好.在室温、4 ℃冷藏和-18 ℃冷冻的3种保存条件下,采用线性模型进行稳定性研究,标准样品在15个月的稳定性检验期间未发现不稳定变化趋势.检验结果表明,制备的28种挥发性有机物质量控制标准样品均匀性和稳定性良好.9家实验室将该标准样品稀释至纯水中1000倍后,采用吹扫捕集-气相色谱-质谱法进行联合定值,经统计分析处理评定出标准值和不确定度,特性量值在24.14—58.83 μg·L-1之间,不确定度在2.04—13.77 μg·L-1之间,可以满足挥发性有机物水质分析质量保证与质量控制的要求.

English Abstract

Development of the certified reference material of volatile organic compounds

1. State Environmental Protection Key Laboratory of Environmental Pollutant Metrology and Reference Materials, Institute for Environmental Reference Materials, Ministry of Environmental Protection, Beijing, 100029, China;
2. Beijing University of Chemical Technology, Beijing, 100029, China

Received Date: 2015-11-03

Fund Project: Supported by National Key Scientific Instrument and Equipment Development Projects (2012YQ060027).

Keywords:

Abstract: This paper describes a method of developing CRM of 28 volatile organic compounds(VOCs) mixture in methanol for environmental monitoring. A good homogeneity was obtained by the testing for the 28 VOCs from 15 units selected by a random stratified scheme covering the whole batch, and 3 sub-samples were analyzed in each unit. At room temperature, 4 ℃ refrigeration and -18 ℃ freezing storage conditions, the concentration of 28 VOCs did not change during monitoring period of 15 months. The CRM was certified by 9 laboratories after the samples were diluted 1000 times with pure water. Based on the results from different analytical techniques including Puge & Trap/Gas-Chromatography/Mass spectrometry and Head-Space/Gas-Chromatography/Mass spectrometry by the 9 collaborating laboratories, values for 28 VOCs were in the range of 24.14—58.83 μg·L-1, expanded uncertainty of each VOC is 2.04—13.77 μg·L-1. The CRMs are suitable for VOCs monitoring in water and method validation.

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水质分析用多组分挥发性有机物质量控制标准样品研究

Development of the certified reference material of volatile organic compounds

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水质分析用多组分挥发性有机物质量控制标准样品研究

English Abstract

Development of the certified reference material of volatile organic compounds

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