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Detection method of navy blue dye in textile
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A detection method, navy blue technology, applied in the field of liquid chromatography-tandem mass spectrometry, to achieve high resolution, convenient mass spectrometry analysis, and sharp peak shape
Inactive Publication Date: 2012-06-20
THE INSPECTION & QUARANTINE TECH CENT ZHEJIANG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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Problems solved by technology
At present, there is no liquid chromatography-tandem mass spectrometry standard method for the detection of navy blue dyes in textiles in my country. In order to maintain the basic security of the country, ensure human health, protect the ecological environment, break through the technical trade barriers of developed countries, and promote clean production and improve enterprises It is of great practical significance to study and formulate the detection method of navy blue in textile products.
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Embodiment 1
[0070] Embodiment 1, a kind of detection method applicable to navy blue dye in textiles, comprises the following steps:
[0071] 1), prepare the sample solution to be tested:
[0072] ①. Mix acetonitrile, sodium dihydrogen phosphate and water according to the weight ratio of 70:0.247:29.753; then adjust the pH value of the solution to 7.5 with 2mol / L sodiumhydroxide; obtain the extractant.
[0073] ②. Take 5.0g of the sample to be tested, cut it to 0.5cm×0.5cm, and mix well.
[0074] Weigh 1g of the above sample (accurate to 0.001g), place it in a 50mL stoppered measuring cylinder, add 20mL extractant, and soak the sample for 2 hours (at room temperature); Ultrasonic extraction for 30min; after cooling to room temperature, pour the extract into a 50mL volumetric flask.
[0075] 3. Wash the sample residue after the extraction obtained in step 2. with 5mL of extractant (same as above) to obtain the washing liquid;
[0127] Embodiment 2, a kind of detection method that is applicable to navy blue dye in textiles, its difference with embodiment 1 is following (all the other are equal to embodiment):
[0128] 1) Take 5.0g of the sample to be tested, cut it to 0.5cm×0.5cm, and mix well.
[0129] Weigh 1g of the above sample (accurate to 0.001g), place it in a 50mL stoppered measuring cylinder, add 15mL extractant, and soak the sample for 1.5 hours (at room temperature); Under ultrasonic extraction for 20min; after cooling to room temperature, pour the extract into a 50mL volumetric flask.
[0130] 2), the sample residue after extraction obtained in step 1) was washed with 5 mL of extractant (same as above) to obtain a washing solution;
[0131] 3) Add the washing liquid to the volumetric flask containing the extract obtained in step 2), that is, combine the extract and washing liquid, and dilute to 25 mL with the extractant (same as above) to obtain an extraction mixture.
[0132] 4) Take th...
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Abstract
The invention discloses a detection method of navy blue dye in textile, which comprises preparing a to-be-detected sample solution; preparing a standard solution; injecting gradient standard solutions into a liquid chromatography-tandem massspectrometer, determining peak positions of the navy blue dye by a negative ion multiple reaction monitoring (MRM) mode, recording the peak area of a quantificational ion pair, and working out a standard curve equation with the concentration as x coordinate and the peak area as y coordinate; and determining the navy blue dye in a supernatant obtained from the first step and its peak area in the same way, and calculating according to the standard curve equation to obtain the content of the navy blue dye in the sample. The method can rapidly, accurately, qualitatively and quantitatively detect the navy blue dye in the textile.
Description
technical field [0001] The invention relates to a liquid chromatography-tandem mass spectrometry method suitable for detecting navy blue dye in textiles. Background technique [0002] In recent years, the European Union has implemented strict protection measures for textiles, and put forward increasingly stringent ecological requirements and social responsibility issues. The successively issued regulations including banning dyes and other chemicals have formed a unified action of all EU members. The European Union is one of the main markets for the export of my country's light textile products. Therefore, it is necessary to have a comprehensive understanding of the EU's information on ecological textile regulations and technical standards. The 2003 / 3 / EC directive issued by the European Union reiterated the 67 / 648 / EC and 2001 / C96E / 18 decrees, and banned a kind of blue colorant for textiles and leather products. The so-called navy blue dye is a mixture, index number 611-070-0...
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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N27/62
Inventor 吴刚赵珊红吴俭俭郭方龙王力君刘婷张明誉
Owner THE INSPECTION & QUARANTINE TECH CENT ZHEJIANG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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