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Method for constructing liquid quality database for screening chemical harmful substances in milk powder

A hazard and database technology, applied in the field of chemical analysis, can solve problems such as chemical hazards

Active Publication Date: 2021-03-09
INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Take chemical hazards as an example, if the formula contains banned substances such as antibiotics and hormones, it is very risky for the fragile immune system and sensitive endocrine system of infants and young children

Method used

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  • Method for constructing liquid quality database for screening chemical harmful substances in milk powder
  • Method for constructing liquid quality database for screening chemical harmful substances in milk powder
  • Method for constructing liquid quality database for screening chemical harmful substances in milk powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0185] Embodiment 1, the screening test of commercially available formula milk powder

[0186] 1. Sample collection

[0187] Six different brands of infant formula milk powder were randomly selected in the market as screening objects.

[0188] 2. Pretreatment method

[0189] 1) Weigh 5g of six different brands of milk powder into 50mL centrifuge tubes with stoppers, in duplicate, add 5mL of deionized water and stir until completely dissolved, then add 15mL of glacial acetonitrile, vortex for 3min, and centrifuge (8000g, 5min) Finally, take 4.5mL of the supernatant solution and add it to the Cleanert LipoNo fat-removing extraction tube.

[0190] 2) The remaining processing method is the same as step 3) and 4) in the specific embodiment 3.

[0191] 3. Data collection and processing

[0192] Before data collection, the blank solvent was used to continuously inject 6 times to balance the analysis system, each of the 12 milk powder samples was randomly collected 3 times, and th...

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Abstract

The invention relates to a method for constructing a liquid quality database for screening chemical harmful substances in milk powder. The method comprises the following steps of (1) pretreatment of base powder / milk powder; (2) detecting components of the milk powder by using liquid chromatography-tandem mass spectrometry (LC-MS), and collecting mass spectrum data; and (3) data acquisition and processing.

Description

technical field [0001] The invention belongs to the field of chemical analysis, and in particular relates to a method for constructing a liquid quality database for screening chemical hazards in milk powder. Background technique [0002] As a substitute for breast milk, the quality and safety of infant formula milk powder has always been a key monitoring area in various countries. Due to many factors, the breastfeeding rate of infants and young children in my country is far below the level required by the World Health Organization (WHO), and the number of infants and young children who consume formula milk powder is huge. Once infant formula milk powder appears, it can cause serious food-borne hazards. Factors, the public impact and negative social effects will be extremely serious. Secondly, infant formula milk powder is aimed at infants, who have obvious distinguishing characteristics compared with the general population: young age, imperfect body functions, vigorous growt...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/30G01N30/32G01N30/34G01N30/72
CPCG01N30/02G01N30/06G01N30/30G01N30/32G01N30/34G01N30/72G01N2030/062G01N2030/324
Inventor 张鸿伟王惠张晓梅张峰聂晨宋翠平宫小明
Owner INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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