Method for detecting dodecamethylcyclohexasiloxane in leather product and application of method

A technology of dodecamethylcyclohexasiloxane and detection method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problem that there is no accurate and effective detection method of dodecamethylcyclohexasiloxane, twelve Methylcyclohexasiloxane decomposition, errors and other problems, to achieve the effect of improving detection repeatability and reproducibility, improving stability, and improving accuracy

Pending Publication Date: 2022-01-28
亿科检测认证有限公司
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Problems solved by technology

However, it also uses gas chromatography, which can easily cause the decomposition of dodecamethylcyclohexasiloxane, resulting in errors
[0007] Due to the urgent requirements for the detection of dodecamethylcyclohexasiloxane, there is currently no accurate and effective detection method for dodecamethylcyclohexasiloxane

Method used

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  • Method for detecting dodecamethylcyclohexasiloxane in leather product and application of method
  • Method for detecting dodecamethylcyclohexasiloxane in leather product and application of method
  • Method for detecting dodecamethylcyclohexasiloxane in leather product and application of method

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Embodiment 1

[0033] This embodiment provides a method for detecting dodecamethylcyclohexasiloxane in leather products, the specific steps are as follows:

[0034] 1) Sample preparation: cut the leather product into a sample to be tested with a size of 5×5×5mm;

[0035]2) Organic solvent extraction: Weigh 1.0062 g of the sample to be tested, place it in an ultrasonic extraction bottle, add 30 mL of a mixed solution of n-hexane, acetonitrile, and methanol (each 10 mL), seal it, and place it in an ultrasonic extractor for 10 min at 120 W. get the extract;

[0036] 3) Concentration: filter the extract, rotary evaporate, and dilute to 10mL to obtain the test solution, and do a blank experiment at the same time;

[0037] 4) Determination: respectively absorb the liquid to be tested and the blank solution to inject samples, obtain the test results, and then calculate the content of dodecamethylcyclohexasiloxane in leather products, wherein the total ion chromatogram of dodecamethylcyclohexasilox...

Embodiment 2

[0058] This embodiment provides a detection method for dodecamethylcyclohexasiloxane in leather products. In the specific steps, 30 mL of n-hexane, acetonitrile, and methanol mixed solution (10 mL each) are replaced by n-hexane, acetonitrile (15 mL each). ) except the mixed solution 30mL, all the other are consistent with embodiment 1.

[0059] After calculation, the content of dodecamethylcyclohexasiloxane in the sample is 5.525 mg / kg.

Embodiment 3

[0061] The present embodiment provides a kind of detection method of dodecamethylcyclohexasiloxane in leather products, in the specific steps, except replacing 30mL of n-hexane, acetonitrile, methanol mixed solution (each 10mL) with 30mL of acetonitrile solution, the rest and Embodiment 1 is consistent.

[0062] After calculation, the content of dodecamethylcyclohexasiloxane in the sample is 5.498 mg / kg.

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Abstract

The invention provides a method for detecting dodecamethylcyclohexasiloxane in a leather product and application thereof. The method comprises the following steps: (1) fragmenting and extracting a to-be-detected sample, and concentrating the extracting solution to a constant volume to obtain a to-be-detected solution; and (2) sampling the to-be-detected solution obtained in the step (1), carrying out ultra-high performance liquid chromatography-mass spectrometry detection, and calculating the content of dodecamethylcyclohexasiloxane in the to-be-detected sample according to a detection result. The detection method provided by the invention can effectively detect the content of the dodecamethylcyclohexasiloxane in the leather, is simple and rapid, has strong matrix interference resistance, is sensitive and accurate, and has excellent repeatability and reproducibility.

Description

technical field [0001] The invention belongs to the technical field of leather product detection, in particular to a method for detecting dodecamethylcyclohexasiloxane in leather products and its application, in particular to a method for detecting dodecamethylcyclohexasiloxane in leather products with good repeatability Oxane detection method and its application. Background technique [0002] Dodecamethylcyclohexasiloxane (D6) is an organosilicon compound. As an important, high value-added additive, it has a wide range of applications in the production and quality optimization of leather products. It has unique surface properties and excellent hand feeling properties, which can make leather soft, bright, smooth and other styles, endow it with waterproof, anti-fouling, anti-wrinkle, anti-static properties, and can also improve the strength of leather and reduce wear and tear. The application of D6 plays an important role in improving the quality and added value of leather ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/88
CPCG01N30/06G01N30/88
Inventor 胡爱生冀昌信罗小芳阮大胜
Owner 亿科检测认证有限公司
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