Method for rapidly screening highly-concerned chemicals in surface water and soil
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A chemical and surface water technology, applied in scientific instruments, electric vehicle charging technology, climate sustainability, etc., can solve problems such as low efficiency, time-consuming single-component detection methods, lack of analysis and detection technology, etc.
Pending Publication Date: 2020-07-07
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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[0003] At present, my country is in a critical period of implementing the national strategy of "integrated development of the Yangtze River Delta Region". In view of the characteristics of the concentration of chemical enterprises, various types of chemicals and high risks in the coastal areas of the Yangtze River Delta, the single-component detection method is time-consuming and inefficient. , high cost, lack of analysis and detection technology, the European Union or some international s
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Embodiment 1
[0043] Take the water samples (W1~W13) and soil samples (S1~S6) collected in the Fuling area of Chongqing for a total of 17 samples for rapid screening of chemicals of high concern. Ultra-high performance liquid chromatography-quadrupole / The electrostatic field orbitrap high-resolution mass spectrometry is used for rapid screening, matching with the mass spectrometry library search of chemicals of high concern. The measurement method includes the following steps:
[0044] Step 1: Sample collection:
[0045] In July 2018, we collected Chongqing Rudong Yangkou Chemical Park, Jianfeng Wujiang Bridge, Panjiaba Sewage Outlet, Panjiaba Sewage Sewage Outlet, Lizhi Wujiang Bridge, Fuling Wujiang Second Bridge, Shibangou Yangtze River Bridge, Fuling Yangtze River Bridge , Qingcaobei Yangtze River Bridge, Longqiao Sewage Treatment Plant (sewage body, discharge outlet), Baitao Sewage Treatment Plant discharge outlets set 13 points (W1 ~ W13), 1L in a brown glass bottle, collect 13 samples...
Embodiment 2
[0063] Taking a total of 22 samples collected in the Three Gorges area (W1~W22) for rapid screening of chemicals of high concern as an example, ultra-high performance liquid chromatography-quadrupole / electrostatic field orbitrap high-resolution mass spectrometry is used for rapid screening Check the sample and match it with the mass spectrometry library search for chemicals of high concern. The measurement method includes the following steps:
[0064] Step 1: Sample collection
[0065] In July 2019, collected the Three Gorges Zhuankou, Honghu Xintankou, Honghu Luoshan Town, Chenglingji, Shishouxiulin Town, Guanyin Temple, Chenjiadian, Gezhouba, Taipingxi, Jiuwanxi, Qinggan River, Xiangxi River, Badong Guandukou, Quchitan, Wushan Yangtze River Bridge, Fengjie County Yangtze River Bridge, Modaoxi, Dazhou, Chungzhou Town Shunxichang, Fengcheng Huangcao Gorge, Xiaoxi Tiansheng Bridge, Jialing River, a total of 22 points Position (W1~W22), 1L in a brown glass bottle, collect 22 sample...
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Abstract
The invention discloses a method for rapidly screening highly-concerned chemicals in surface water and soil. The method comprises the steps of screening a highly-concerned chemical list, grouping substances, optimizing mass spectrum conditions and chromatographic conditions, constructing a mass spectrum library and rapidly screening the highly-concerned chemicals. According to the method, samplesin surface water and soil are rapidly screened by adopting ultra-high performance liquid chromatography-quadrupole rod/electrostatic field orbitrap high-resolution mass spectrum, and based on accuratemass number, retention time, characteristic fragments and isotope distribution proportion, the samples are searched and matched with a mass spectrum library of highly-concerned chemicals for rapid qualitative analysis. A screening result can be obtained within 70min, the sample detection and treatment time is greatly shortened, the detection efficiency is improved, and technical support is provided for risk assessment and risk management of highly-concerned chemicals.
Description
Technical field [0001] The invention belongs to the field of environmental protection, and relates to a chemical analysis method, in particular to a rapid screening method for chemicals of high concern in surface water and soil. Background technique [0002] In 2001, the European Union proposed an innovative chemical risk management system-"Chemical Registration, Evaluation, Authorization Management System" (REACH) in its "White Paper on Chemical Policy" for future sustainable development. Related categories of "highly durable and highly bioaccumulative" chemicals (vPvB), "carcinogenic, teratogenic and reproductive toxicity" (CMR) chemicals, and "endocrine disrupting substances (EDCs)" and other high environmental and health risk chemicals Defined as "Substances of Very High Concern" (SVHCs). Since the REACH regulation was promulgated and implemented in 2007, the list of SVHC candidate substances has been continuously updated, reaching 191 species by 2018. [0003] At present, my...
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