大气压微波等离子体发射光谱法检测磷、氯类毒剂模拟剂

引用本文: 李聪, 杨金传, 王凯强, 朱文超, 丁志军, 黄邦斗, 章程, 邵涛. 大气压微波等离子体发射光谱法检测磷、氯类毒剂模拟剂[J]. 分析化学, 2022, 50(9): 1425-1434. doi: 10.19756/j.issn.0253-3820.210838 shu

Citation: LI Cong, YANG Jin-Chuan, WANG Kai-Qiang, ZHU Wen-Chao, DING Zhi-Jun, HUANG Bang-Dou, ZHANG Cheng, SHAO Tao. Detection of Toxic Simulant Phosphorus and Chlorine by Atmospheric Pressure Microwave Plasma Optical Emission Spectrometry[J]. Chinese Journal of Analytical Chemistry, 2022, 50(9): 1425-1434. doi: 10.19756/j.issn.0253-3820.210838 shu

大气压微波等离子体发射光谱法检测磷、氯类毒剂模拟剂

李聪 ^1, ,
杨金传 ^1,2, ,
王凯强 ^1, ,
朱文超 ^{1,
,} ,
丁志军 ^1, ,
黄邦斗 ^{2,
,} ,
章程 ^2,3, ,
邵涛 ^2,3,

1.
国民核生化灾害防护国家重点实验室, 北京 102205;
2.
中国科学院电工研究所, 等离子体科学和能源转化北京市国际科技合作基地, 北京 100190;
3.
中国科学院大学, 北京 100049

通讯作者: 朱文超,E-mail:zhuwc05@139.com; 黄邦斗,E-mail:huangbangdou@mail.iee.ac.cn

基金项目:
国家自然科学基金项目（Nos.51925703，51907190）和国民核生化灾害防护国家重点实验室科研基金项目（No.FHSKL201903）资助。

摘要: 基于大气压微波等离子体发射光谱法,分析了磷、氯类毒剂模拟剂甲基膦酸二甲酯(Dimethyl methylphosphonate,DMMP)、马拉硫磷和三氯甲烷的特征谱线/谱带,建立了磷、氯类毒剂模拟剂的检测方法。其中,DMMP特征光谱为P原子谱线(213.62、214.91 nm)、PO基团谱带(254.04、255.50 nm)和C原子谱线(247.86 nm);马拉硫磷特征光谱与DMMP相同,但PO基团谱带与C原子谱线相对强度有明显差异,可用于二者判别;三氯甲烷特征光谱为Cl原子谱线(725.66、754.71、837.59、858.60、894.81 nm等)。针对微波功率对检测效果的影响,以DMMP为例,其特征光谱强度与微波功率在40~110 W范围内呈线性关系;对于光谱收集区域的影响,实验表明,微波等离子体头部待测物特征光谱强度最高,中间和尾部依次降低。在微波功率为70 W的条件下,收集等离子体头部特征光谱,分别获得了不同毒剂模拟剂的检出限,其中,DMMP的检出限低至0.05 mg/m³,马拉硫磷的检出限为3.3 mg/m³,三氯甲烷的检出限为1.8 mg/m³。本研究建立了基于大气压微波等离子体原子/分子发射光谱对磷、氯类毒剂模拟剂的检测方法,并基于光谱相对强度比对特征光谱组成相同的不同物质进行了区分,为微量毒剂种类判别与定量检测提供了技术参考。

关键词:

English

Detection of Toxic Simulant Phosphorus and Chlorine by Atmospheric Pressure Microwave Plasma Optical Emission Spectrometry

1.
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China;
2.
Beijing International S & T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China;
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: ZHU Wen-Chao, ; HUANG Bang-Dou,

Received Date: 16 November 2021
Revised Date: 08 May 2022
Fund Project:
Supported by the National Natural Science Foundation of China (Nos.51925703, 51907190) and the State Key Laboratory of NBC Protection for Civilian (No.FHSKL201903).

Abstract: The optical emission spectroscopy (OES) from atmospheric pressure microwave (MW) plasma was proposed for detection of trace toxic agents, such as phosphorus and chlorine. Characteristic OES of dimethyl methylphosphonate (DMMP), malathion and chloroform, as simulant of phosphorus and chlorine toxics, was analyzed and identified. The characteristic OES of DMMP included P atomic lines (213.62 and 214.91 nm), PO radical bands (254.04 and 255.50 nm), and C atomic line (247.86 nm). The characteristic OES of malathion was the same as that of DMMP, but their relative intensity was different, which could be used to discriminate the two chemicals. The characteristic OES of chloroform included Cl atoms (725.66, 754.71, 837.59, 858.60 and 894.81 nm, etc). By taking the characteristic OES of DMMP as an example, the OES intensity had a linear relationship with the MW power within the range of 40-110 W. As for the impact of OES collection region, OES intensity of the object to be detected at the head of the MW plasma was the highest, and those at the middle and tail were reduced in turn. With a MW power of 70 W and collection region from plasma head, the detection limit of DMMP, malathion and chloroform were 0.05, 3.3 and 1.8 mg/m³, respectively. This work presented an atomic/molecular OES detection method using MW plasma and proposed that the relative OES intensity strategy could be used to discriminate chemicals with same characteristic OES, which provided a technical reference for detection of trace toxic agents.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

大气压微波等离子体发射光谱法检测磷、氯类毒剂模拟剂

通讯作者: 朱文超,E-mail:zhuwc05@139.com; 黄邦斗,E-mail:huangbangdou@mail.iee.ac.cn

English

Detection of Toxic Simulant Phosphorus and Chlorine by Atmospheric Pressure Microwave Plasma Optical Emission Spectrometry

Corresponding author: ZHU Wen-Chao, ; HUANG Bang-Dou,

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

大气压微波等离子体发射光谱法检测磷、氯类毒剂模拟剂

通讯作者: 朱文超,E-mail:zhuwc05@139.com; 黄邦斗,E-mail:huangbangdou@mail.iee.ac.cn

English

Detection of Toxic Simulant Phosphorus and Chlorine by Atmospheric Pressure Microwave Plasma Optical Emission Spectrometry

Corresponding author: ZHU Wen-Chao, ; HUANG Bang-Dou,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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