Method for detecting bisphenol compounds in milk

A detection method, bisphenols technology, applied in the field of detection of bisphenols in milk, can solve the problems of unable to meet the needs of detection of bisphenols, single packing of solid phase extraction column, complex milk matrix, etc., to improve High detection sensitivity, good extraction effect and simple operation

Active Publication Date: 2021-06-01
INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the complexity of the milk matrix and the single packing of the current solid-phase extraction

Method used

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  • Method for detecting bisphenol compounds in milk
  • Method for detecting bisphenol compounds in milk
  • Method for detecting bisphenol compounds in milk

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flow chart of the method for detecting bisphenols in milk provided by the embodiment of the present invention, and the method includes:

[0020] Step 1. First, measure a certain amount of milk sample to be tested, add bisphenol compound standard to it, and vortex to mix thoroughly;

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Abstract

The invention discloses a method for detecting bisphenol compounds in milk. The method comprises the following steps: firstly, measuring a certain amount of milk sample to be detected, adding a bisphenol compound standard substance into the milk sample to be detected, and fully vortex and uniformly mixing; transferring the sample to a specific solid-phase extraction column, and enabling the milk sample to be detected to pass through the specific solid-phase extraction column through a negative pressure device, so that the bisphenol compounds in the milk sample to be detected are enriched on the specific solid-phase extraction column; eluting the specific solid-phase extraction column by using 3mL of ultrapure water so as to remove strong-polarity interferents; and eluting the specific solid-phase extraction column with methanol, collecting an eluent, carrying out nitrogen blowing until the eluent is completely dried, carrying out constant volume determination with methanol, carrying out vortex filtration on a filter membrane, and carrying out determination with liquid chromatography-tandem mass spectrometry so as to realize detection of the bisphenol compounds in the milk sample to be detected. The method is simple to operate and good in extraction effect, can greatly improve the detection sensitivity, and is suitable for detecting low-concentration bisphenol compounds in large-volume milk.

Description

technical field [0001] The invention relates to the technical field of environmental water sample monitoring, in particular to a method for detecting bisphenol compounds in milk. Background technique [0002] Bisphenols (BPs) are environmental endocrine disruptors, widely present in food packaging materials and environmental media, which not only pollute the ecological environment, but also pose certain hazards to human health. Bisphenol residues are currently an important food safety issue, and the detection of bisphenols in food and environmental samples is of great significance to human health. [0003] Due to the complexity of the milk matrix and the single packing material of the current solid-phase extraction column, the traditional processing method cannot meet the current needs of the detection of bisphenols in milk. Contents of the invention [0004] The purpose of the present invention is to provide a method for detecting bisphenol compounds in milk, which is si...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/72
CPCG01N30/02G01N30/72
Inventor 王培龙程劼于立明董姝君王瑞国商伟伟苏晓鸥
Owner INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS
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