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Testing method of illegally added industrial dye-acid orange II content in food

A technology of illegal addition and determination method, applied in the direction of material separation, analysis material, measuring device, etc., can solve problems such as endangering consumers' health

Inactive Publication Date: 2009-12-09
谱尼测试集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the bright color, stable coloring and low price of Acid Orange II, some unscrupulous traders use it in food production and processing for profiteering, which seriously endangers the health of consumers.

Method used

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  • Testing method of illegally added industrial dye-acid orange II content in food
  • Testing method of illegally added industrial dye-acid orange II content in food
  • Testing method of illegally added industrial dye-acid orange II content in food

Examples

Experimental program
Comparison scheme
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Embodiment

[0063] a) Weigh 1.0 g of sample into a 50 mL centrifuge tube, add 10.0 mL of extraction solution, ultrasonically extract for 30 minutes, centrifuge at 10,000 r / min for 10 minutes, transfer the supernatant to another 50 mL centrifuge tube; add 10.0 mL of extraction solution to the residue The solution was extracted again, and the two extraction solutions were combined.

[0064] b) purification

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Abstract

The invention relates to a method for testing illegally added industrial dye-acid orange II content in food with a series liquid phase mass spectrometer. By carrying out centrifugal and ultrasonic extraction on a sample, the supernatant is taken to be extracted and purified by a solid phase and passes through a filter membrane with 0.22 mum to be injected into a liquid phase chromatograme-tandem mass spectrum, the target composition is determined on nature by retention time and relative abundance of LC-MS / MS chromatographic peak area corresponding to (characteristic ion pair / quantitative ion pair) of two pairs of ions. The retention time of the target composition in the tested sample is required to be consistent with the retention time of target composition in the standard solution and the deviation is less than 20%, simultaneously, LC-MS / MS chromatographic peak area ratio corresponding to the two pairs of ions of the target composition in the tested sample is required to be consistent with the area ratio of the target composition in the standard solution, and quantitative determination is carried out.

Description

technical field [0001] The invention relates to a method for determining the content of illegally added industrial dye-Acid Orange II in food, in particular to a method for determining the content of illegally added industrial dye-Acid Orange II in food by using a tandem liquid phase mass spectrometer Background technique [0002] Acid Orange II is an azo acid industrial dye, also known as Acid Golden II, Golden Orange II or Acid Brilliant Orange GR, commonly known as Golden Powder. Soluble in water and ethanol. Mainly used for dyeing silk and wool. It can also dye leather, paper and nylon. Can print. Can also be used as an indicator. Good discharge and level dyeing properties, poor color fastness, suitable for dyeing wool with high brightness. When dyeing, it tends to be dark red when it encounters copper ions, and light and dark when it encounters iron ions. [0003] Non-food coloring Acid Orange II, also known as Golden Orange II, No. base indicator. In medicine, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/72B01D15/08
Inventor 宋薇
Owner 谱尼测试集团股份有限公司
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