Method for detecting nitro polycyclic aromatic hydrocarbon and polycyclic aromatic hydrocarbon in soil

A polycyclic aromatic hydrocarbons and detection method technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high professional requirements for operators, high requirements for instrumentation, time-consuming and labor-intensive problems, and achieve simple pre-treatment process, Less time-consuming, high-sensitivity effects
CN111007192AActive Publication Date: 2020-04-14INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
Publication Date
2020-04-14

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Abstract

The invention relates to a detection method of nitro polycyclic aromatic hydrocarbon and polycyclic aromatic hydrocarbon in soil. The method comprises the following steps: (1), performing extraction;to be specifc, adding n-hexane into a soil sample, carrying out vortex treatment, centrifuging, and taking a supernatant; (2), performing purification and derivation; to be specific, enabling the supernatant obtained in the (1) to pass through an m-PFC purification columella, carrying out blow-drying with nitrogen, and then reacting with a fluorescence derivatization reagent to generate a target substance with a fluorescence effect; and (3), performing HPLC-FLD determination; to be specific, separating and detecting nitro polycyclic aromatic hydrocarbon and the polycyclic aromatic hydrocarbonin the target substance in the (2) by adopting a high performance liquid chromatography-fluorescence detector joint method. According to the method, QuEChERS is combined with the high performance liquid chromatography-fluorescence detector and thus a simple, rapid and accurate detection technology for the nitro polycyclic aromatic hydrocarbon and polycyclic aromatic hydrocarbon in the soil is provided; the specificity is high and the sensitivity is high; and the method has important practical significance in solving the problem of the technology of the polycyclic aromatic hydrocarbon and the nitro derivatives of the polycyclic aromatic hydrocarbon of large-batch samples.
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Description

technical field

[0001] The invention relates to the technical field of pollutant detection in soil, in particular to a method for detecting nitro polycyclic aromatic hydrocarbons and polycyclic aromatic hydrocarbons in soil. Background technique

[0002] Nitro-PAHs are derivatives of PAHs, usually accompanied by parent PAHs, and their teratogenic and carcinogenic effects are stronger than those of the parent. For example, the typical nitro PAH 1-nitropyrene is listed as a 2A carcinogen by the International Cancer Research Center (IARC), and its toxicity is 10-10 times that of the parent pyrene. 4 times.

[0003] At present, the detection and analysis of polycyclic aromatic hydrocarbons in soil is mainly carried out by gas chromatography (GC), high performance liquid chromatography (HPLC) and tandem mass spectrometry, but there are few reports on the detection methods of nitro polycyclic aromatic hydrocarbons, mainly because The content of nitro derivatives is low, which re...

Claims

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