Liquid chromatography-mass spectrometry (LC-MS) detection method for diphenyl ketone ultraviolet-proof finishing agents in textiles

A benzophenone-based, anti-ultraviolet technology, applied in the field of liquid chromatography-tandem mass spectrometry detection method, achieves high sensitivity, low background signal, and improved detection speed

Inactive Publication Date: 2015-04-01
THE INSPECTION & QUARANTINE TECH CENT ZHEJIANG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there is no domestic research report on the liquid chromatographi

Method used

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  • Liquid chromatography-mass spectrometry (LC-MS) detection method for diphenyl ketone ultraviolet-proof finishing agents in textiles
  • Liquid chromatography-mass spectrometry (LC-MS) detection method for diphenyl ketone ultraviolet-proof finishing agents in textiles
  • Liquid chromatography-mass spectrometry (LC-MS) detection method for diphenyl ketone ultraviolet-proof finishing agents in textiles

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Embodiment 1

[0081] Embodiment 1. A liquid chromatography-tandem mass spectrometry detection method suitable for textile benzophenone UV-resistant finishing agents, comprising the following steps:

[0082] 1), prepare the sample solution to be tested

[0083] (1) Take a representative sample, cut it into small pieces of about 5 mm × 5 mm, mix well, and obtain a sample;

[0084] (2) Weigh 1.0g of the above-mentioned chopped sample (sample), accurate to 0.01g, place it in a glass extractor with a screw cap, add 30mL of dichloromethane, immerse all the samples in the liquid, and put the extractor After sealing, ultrasonically extract for 30min in a frequency of 40kHz ultrasonic generator;

[0085] The solid-liquid ratio of the sample to be tested and the extractant is: 1g / 30mL;

[0086] (3) After cooling to room temperature, the extract was concentrated under reduced pressure (90 mbar) in a water bath at 40 ° C to dryness, and then washed with N 2 Blow dry, add 2mL methanol and vortex to d...

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Abstract

The invention discloses a liquid chromatography-mass spectrometry (LC-MS) detection method for diphenyl ketone ultraviolet-proof finishing agents in textiles. The LC-MS detection method comprises the following steps: (1) preparing a to-be-detected sample solution; (2) preparing standard solutions: preparing eight mixed standard working solutions in which the concentrations of the diphenyl ketone ultraviolet-proof finishing agents are 0.01-10mu g/mL to be serve as gradient standard solutions; (3) injecting the gradient standard solutions into a liquid chromatography-tandem mass spectrometer, and determining in a positive-negative-ion multi-reaction monitoring mode, and thus a standard curve equation is generated; and (4) taking the supernatant obtained in the step (1) and determining the diphenyl ketone ultraviolet-proof finishing agents in the supernatant and peak areas of the diphenyl ketone ultraviolet-proof finishing agents according to the method in the step (3) and calculating according to the standard curve equation in the step (3) to obtain the contents of the diphenyl ketone ultraviolet-proof finishing agents in the to-be-detected sample.

Description

technical field [0001] The invention relates to a liquid chromatography-tandem mass spectrometry detection method suitable for benzophenone anti-ultraviolet finishing agents in textiles. Background technique [0002] In recent years, due to the ozone hole and enhanced ultraviolet rays, more and more people pay more and more attention to anti-ultraviolet radiation, and anti-ultraviolet functional textiles are also favored by people. Ultraviolet rays are high-energy electromagnetic waves. Prolonged exposure to ultraviolet rays can cause skin lesions and organic molecules to undergo photodegradation. Japan, the United States and other countries have even included the anti-ultraviolet function of primary school students' clothing supplies in legal provisions, which shows the importance of textile anti-ultraviolet. There are generally two methods for anti-ultraviolet finishing of textiles. One is to use inorganic pigments to mechanically coat the surface of textiles, such as zin...

Claims

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Application Information

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IPC IPC(8): G01N30/88G01N30/06
Inventor 吴刚赵珊红王力君张明誉李丹李婷阮毅
Owner THE INSPECTION & QUARANTINE TECH CENT ZHEJIANG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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