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Detection analysis method of benzophenone substances in environmental water

A technology of benzophenones and analysis methods, which is applied in the field of trace detection of organic pollutants in environmental water bodies, can solve problems such as high cost and complicated process, and achieve high repeatability, accurate and sensitive detection results, and good reproducibility Effect

Pending Publication Date: 2019-11-01
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This requires a method that can quickly and sensitively detect the target substance in the sample. Therefore, an effective pretreatment method is used to quickly and accurately detect benzophenones in the environmental water body to improve the complex process of the existing treatment method. , and the current situation of high cost has become an urgent technical problem to be solved

Method used

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  • Detection analysis method of benzophenone substances in environmental water
  • Detection analysis method of benzophenone substances in environmental water
  • Detection analysis method of benzophenone substances in environmental water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this embodiment, a method for detecting and analyzing benzophenones in environmental water comprises the following steps:

[0026] a. Sample pretreatment:

[0027] Three groups of parallel samples were set up, each group of water samples was 500ml, 0.1mL of BPA-d16 solution with a concentration of 1mg / L was added to the first and second groups, and 6 kinds of benzophenone substances were added to the first and second groups of samples. Mix the standard solution, and do not add the mixed standard solution to the third group of samples; use HCl to adjust the pH to 3 for the three groups of samples; obtain the water sample pretreatment solution and use it as a sample for later use;

[0028] b. Use a solid-phase extraction column for enrichment and purification. The specific process of passing through the column is as follows:

[0029] First, the solid-phase extraction column is activated with 5mL methanol and 5mL ultrapure water at a flow rate of 1mL / min; then the wate...

Embodiment 2

[0048] In this example, the determination of the concentration of benzophenones in the actual sample.

[0049] Collect 5 actual water samples, use the method of Example 1 for pretreatment, and then use solid phase extraction for purification and enrichment, and then use high performance liquid chromatography-mass spectrometry to analyze and detect the actual concentration of the target substance in the sample.

[0050] In this embodiment, a method for detecting and analyzing benzophenones in environmental water comprises the following steps:

[0051] a. Sample pretreatment:

[0052] Three groups of parallel samples were set up for each water sample; for each water body sample, each group of water samples was 500ml, and 0.1mL of BPA-d16 solution with a concentration of 1mg / L was added to the first and second groups. The mixed standard solution of 6 kinds of benzophenones was added to the second group of samples, and the mixed standard solution was not added to the third group ...

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Abstract

The invention discloses a detection analysis method of benzophenone substances in environmental water. Through the method, the benzophenone substances in the water can be simultaneously detected through the pretreatment method of solid phase extraction in combination with a high-performance liquid chromatography-mass spectrometer technology. The method comprises the steps that first, after a watersample is filtered, HCl is used to regulate the PH of the water sample, and an internal standard substance is added; second, a solid phase extraction column is used to extract, enrich and purify thebenzophenone substances in the sample; and third, the content of a target substance in the water is detected through a high-performance liquid chromatography-mass spectrometer. According to the method, the treatment method of the water sample is low in cost, the steps are simple and easy to implement, operation is easy and convenient, the detection result is accurate and has high stability, and the sample suitable for high-performance liquid chromatography-mass spectrometer detection can be quickly obtained. The method has the advantages that detection speed is high, the automatic degree is high, response is sensitive, the recovery rate can reach 71.0-120.5%, large-scale industrial application is facilitated, and the method is a rapid, efficient and accurate qualitative and quantitative detection method.

Description

technical field [0001] The invention relates to a component testing method of an environmental water body, in particular to a detection method of benzophenone substances in the environmental water body, which is applied to the technical field of trace detection of organic pollutants in the environmental water body. Background technique [0002] Benzophenones (BPs) are widely used in personal care products, sunscreens, printing and dyeing industries, and plastic coatings, and are a class of UV filters that are widely used. With the widespread use of personal care products and plastic products, BPs may eventually enter the natural environment through various channels such as daily washing, water parks, swimming pools, industrial wastewater discharge, and urban sewage treatment plants. . Benzophenones have anti-androgen and estrogen properties, interfere with the growth of the thyroid gland, and have a strong endocrine disrupting effect. The environmental testing and ecotoxici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/08G01N30/14
CPCG01N30/02G01N30/06G01N30/08G01N30/14G01N2030/045G01N2030/047G01N2030/062
Inventor 刘敏江杨诚王洋
Owner SHANGHAI UNIV
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