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Method for detecting odor compounds in textiles

A detection method and technology for compounds, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of market supervision difficulty and market confusion, and achieve the effect of lowering the requirements for professional experience and reducing the possibility of misjudgment

Active Publication Date: 2020-09-04
SHANGHAI INST OF QUALITY INSPECTION & TECHN RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the detection of odor compounds in textiles, there is no clear and unified standard in my country at present, and the market is chaotic, which brings difficulties to the government's market supervision.

Method used

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  • Method for detecting odor compounds in textiles
  • Method for detecting odor compounds in textiles
  • Method for detecting odor compounds in textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Take a gray textile sample, shred it and mix it evenly, weigh 1g of the sample, and place it in a headspace bottle;

[0029] (2) Prepare the mixed standard working solution: dilute the mixed standard stock solution into a mixed standard working solution with a concentration of 20 μg / mL;

[0030] (3) The gas chromatography-mass spectrometer (GC-MS) conditions are as follows, the extraction head is divinylbenzene / carbon molecular sieve / polydimethylsiloxane (DVB / CAR / PDMS), and the coating thickness of the extraction head is; 50 / 30μm; equilibration time is 15min; extraction time is 20min; desorption time is 2min; gas chromatography-mass spectrometry analysis conditions are: column is DB-WAX capillary column; carrier gas is helium; column flow rate is 1.5mL / min ;Injection port temperature 250°C; split injection, split ratio 5:1; temperature program: initial temperature 40°C, maintain 5min, increase temperature to 250°C at 15°C / min, maintain 15min; EI: 70eV, ion source ...

Embodiment 2

[0034] (1) Take a white textile sample, shred it and mix it evenly, weigh 1g of the sample, and place it in a headspace bottle;

[0035] (2) Prepare the mixed standard working solution: dilute the mixed standard stock solution into a mixed standard working solution with a concentration of 20 μg / mL;

[0036] (3) The gas chromatography-mass spectrometer (GC-MS) conditions are as follows, and the solid-phase microextraction conditions are: the extraction head is divinylbenzene / carbon molecular sieve / polydimethylsiloxane (DVB / CAR / PDMS), and the extraction The thickness of the first coating is; 50 / 30μm; the equilibrium time is 20min; the extraction time is 25min; the desorption time is 5min. The analysis conditions of the gas chromatography-mass spectrometer are: the chromatographic column is a DB-WAX capillary column; the carrier gas is helium; the column flow rate is 2mL / min; the inlet temperature is 250°C; the split injection is 7:1; Temperature program: initial temperature 40°...

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Abstract

The invention discloses a method for detecting odor compounds in textiles. The method comprises the following steps: (1) weighing a certain quantity of textile samples which are cut into pieces and uniformly mixed, and putting the textile samples into a headspace bottle; (2) carrying out analyzing by adopting a solid-phase micro-extraction sample injection mode and a gas chromatography-mass spectrometer; and (3) qualitatively and quantitatively calculating the contents of the 13 odor compounds in the textiles according to the retention time of the 13 odor compounds and the corresponding peak areas. The method disclosed by the invention can be used for simultaneously detecting whether the textile contains 13 peculiar smell compounds or not, pretreatment is not needed, and organic solvent repollution is avoided; a gas chromatography-mass spectrometry trace analysis technology is combined, and accurate qualitative and quantitative test on the peculiar smell target object can be realized,so that the possibility of misjudgment is reduced, and objective evaluation is provided for arbitration inspection and supervision spot check of the textiles.

Description

technical field [0001] The invention relates to the field of textile detection, in particular to a method for detecting odorous compounds in textiles. Background technique [0002] Odor substances mainly come from a large amount of waste gas produced in the process of human life and industrial and agricultural production. In addition to bringing people discomfort, they can also cause harm to human health and the ecological environment in severe cases. At present, odor pollution has been highly valued by countries all over the world and listed as one of the seven major environmental hazards. Among them, textile odor is closely related to people's daily life. Since the "poisonous school uniform" incident in 2013, the safety of textiles has always been a national and national issue. The focus of industry attention. At present, the detection and evaluation of textile odor is carried out by professionals using the olfactory method, such as the odor detection in my country's mand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062Y02A50/20
Inventor 包海峰赵海浪庄园园谭玉静
Owner SHANGHAI INST OF QUALITY INSPECTION & TECHN RES