Method for measuring 55 volatile organic compounds in surface water

Abstract

The present invention is applicable to the technical field of environmental safety supervision and discloses a method for measuring 55 volatile organic compounds in surface water, comprising the steps of pretreating a sample, setting instrument parameters, establishing standard curves and quantifying by internal standard method. According to the method for measuring 55 volatile organic compounds in surface water, after a certain amount of surface water sample is extracted with methanol, a substrate correction fluid is added, headspace treatment is carried out, 55 volatile organic compounds in the surface water sample are qualitatively and quantitatively analyzed by using gas chromatography and mass spectrometry method, and the method is simple to perform, high in accuracy and sensitivity, has small interference and good repeatability, has good curvilinearity of the 55 volatile organic compounds in a concentration range of 40 Mu / L to 900 Mu / L, has each correlation coefficient reaching 0.999 and above, is highly practical to monitoring the volatile organic compounds in surface water, is useful for risk assessment of surface water pollution condition, and has important environmental significance.

Description

【Technical Field】 [0001] The invention relates to the technical field of environmental safety monitoring, in particular to a method for measuring 55 volatile organic pollutants in surface water. 【Background technique】 [0002] With the development of economy, environmental problems are getting worse, such as the discharge of automobile exhaust, industrial waste water, exhaust gas, etc., which have caused serious threats to the environment. The environment is the space area where people live, which directly affects human health and Life, so it is necessary and important to increase environmental protection. [0003] And water is the source of all life, an essential element in people's daily life, an important resource on which all life depends, and an important element to maintain the normal life state of the human body. Surface water refers to the water that exists on the surface of the earth's crust and is exposed to the atmosphere. It is the general term for the four water bodie...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for measuring 55 kinds of volatile organic pollutants in surface water, which aims to solve the serious problem of environmental pollution in the prior art, and the pollution of surface water has potential safety hazards. However, the current surface water quality detection is more complex and has low accuracy technical problems.

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