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Determination method of 3,3'-disteaxyl thiodipropionate in food contact material

A technology of dioctadecyl thiodipropionate and food contact materials, applied in the field of detection, can solve the problem that there is no more accurate and convenient method for the detection of 3,3'-dioctadecyl thiodipropionate, and there is no detection Methods and other issues, to achieve the effect of environmental protection, less reagent consumption, and low detection limit

Pending Publication Date: 2020-12-18
深圳天祥质量技术服务有限公司
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Problems solved by technology

At present, there is no standard detection method for 3,3'-dioctadecylthiodipropionate
[0006] At present, there is no more accurate and convenient method for the detection of 3,3'-dioctadecylthiodipropionate.

Method used

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  • Determination method of 3,3'-disteaxyl thiodipropionate in food contact material
  • Determination method of 3,3'-disteaxyl thiodipropionate in food contact material
  • Determination method of 3,3'-disteaxyl thiodipropionate in food contact material

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Embodiment Construction

[0048] In order to make the purpose, features and advantages of the present application more obvious and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Apparently, the described embodiments are some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0049] In the embodiment of the present invention, the present invention provides a method for the determination of 3,3'-dioctadecyl thiodipropionate in food contact materials, including: S1, sampling; S2, pretreatment and S3, detection pretreatment The content of 3,3'-dioctadecyl thiodipropionate in the target object, wherein, the step of detecting the content of 3,3'-dioctadecyl thiodipropionate in the ...

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Abstract

The invention discloses a method for determining 3,3'-disteaxyl thiodipropionate in a food contact material, which comprises the following steps: sampling the material, and preprocessing and detectingthe content of 3,3'-disteaxyl thiodipropionate in the preprocessed target object. The method provided by the invention fills the technical blank of the existing determination market; the detection limit is as low as 1mg / kg; the migration liquid is extracted by adopting an organic phase, so that the repeatability and the reproducibility are good, the operation is simple and convenient, the used organic solvent is less, and the environmental protection is facilitated; in addition, gas chromatography-mass spectrometry is used for measurement, the reagent dosage is small, the contact risk of testers is reduced, and meanwhile the waste liquid treatment cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of detection, in particular to a method for determining 3,3'-dioctadecylthiodipropionate in food contact materials. Background technique [0002] 3,3'-dioctadecyl thiodipropionate is a sulfur-containing ester auxiliary antioxidant, mainly used in polyethylene, polypropylene, polyvinyl chloride, ABS resin, due to its high efficiency, low toxicity, and non-volatile , is currently internationally recognized as an excellent auxiliary antioxidant. In food contact materials, dioctadecyl 3,3'-thiodipropionate is often used as an additive for plastics, resin materials, etc., and plays the role of auxiliary antioxidant and UV stabilizer. [0003] The "National Food Safety Standard for the Use of Additives in Food Contact Materials and Products" stipulates that the special migration limit (SML) in food contact materials is 5mg / kg. [0004] The US Food and Drug Administration CFR21 regulations stipulate that the special migrat...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/025G01N2030/062
Inventor 杨承锋
Owner 深圳天祥质量技术服务有限公司
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