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Method for detecting tribromoneopentyl alcohol and 2, 3-dibromopropanol

A technology of tribromoneopentyl alcohol and dibromopropanol, which is applied in the field of detection of tribromoneopentyl alcohol and 2,3-dibromopropanol, and achieves the effects of simple operation, high selectivity and improved detection efficiency

Pending Publication Date: 2022-03-01
深圳天祥质量技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no reliable method to determine the content of these two substances, so exploring a suitable detection method and the detection process and detection conditions involved in the detection method can regulate tribromoneopentyl alcohol and 2,3-dibromo The use of propanol avoids risks for social production and assists related industries to accelerate the international access process

Method used

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  • Method for detecting tribromoneopentyl alcohol and 2, 3-dibromopropanol
  • Method for detecting tribromoneopentyl alcohol and 2, 3-dibromopropanol
  • Method for detecting tribromoneopentyl alcohol and 2, 3-dibromopropanol

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Embodiment 1

[0079] In specific embodiment 1, the method for detecting tribromoneopentyl alcohol and 2,3-dibromopropanol comprises:

[0080] Weigh 1.05g of the plastic sample to be tested, cut the plastic sample to be tested into 5mm×5mm sample fragments, put them in a test tube, add 10mL tetrahydrofuran to mix, and conduct ultrasonic extraction on the mixture at 70°C for 30min ; then placed on a shaker and shaken for 35 minutes; then added 20 mL of acetonitrile to the solution, and then carried out ultrasonic extraction at a temperature of 70 ° C for 30 minutes, and then filtered to obtain the solution to be tested and waited for detection on the machine, using gas chromatography-mass spectrometry The chromatographic conditions used are: chromatographic column: DB-624, inlet temperature: 250°C; injection volume: 1μL; split mode: pulse without split; heating curve: initial temperature 40°C, 5°C / min Raise the temperature to 80°C, raise the temperature to 120°C at 10°C / min, then raise the te...

specific Embodiment 2

[0082] In specific embodiment 2, the method for detecting tribromoneopentyl alcohol and 2,3-dibromopropanol comprises:

[0083] Weigh 0.95g of the thermoplastic sample to be tested, cut the plastic sample to be tested into 5mm×5mm sample fragments, put them in a test tube, add 10mL tetrahydrofuran for mixing, and conduct ultrasonic extraction on the mixture at a temperature of 70°C 30min; then placed on a shaker and shaken for 30min; then added 20mL of acetonitrile to the solution, and then carried out ultrasonic extraction treatment at a temperature of 70°C for 30min, and then filtered to obtain the solution to be tested on the machine, using gas chromatography-mass spectrometry The instrument was used for detection, and the chromatographic conditions used were: chromatographic column: DB-624, inlet temperature: 250°C; injection volume: 1μL; split mode: pulse without split; Raise the temperature to 80°C in min, then raise the temperature to 120°C at 10°C / min, then raise the t...

specific Embodiment 3

[0085] In specific embodiment 3, the method for detecting tribromoneopentyl alcohol and 2,3-dibromopropanol comprises:

[0086]Weigh 1.00g of the textile fabric sample to be tested, cut the textile fabric sample to be tested into 5mm×5mm sample fragments, put them in a test tube, add 10mL tetrahydrofuran for mixing, and conduct ultrasonic waves on the mixture at a temperature of 70°C Extract for 30 minutes; then shake on a shaker for 25 minutes; then add 20 mL of acetonitrile to the solution, perform ultrasonic extraction at a temperature of 70 ° C for 30 minutes, and then filter to obtain the test solution to be tested on the machine, using gas chromatography mass spectrometry The chromatographic conditions used for detection are: chromatographic column: DB-624, inlet temperature: 250°C; sample volume: 1μL; split mode: pulse without split; heating curve: initial temperature 40°C, increasing to 5°C / min to 80°C, 10°C / min to 120°C, then 15°C / min to 250°C, and hold for 5 minutes...

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Abstract

The invention provides a method for detecting tribromoneopentyl alcohol and 2, 3-dibromopropanol, the method is used for detecting tribromoneopentyl alcohol and 2, 3-dibromopropanol in consumer goods, and the method comprises the following steps: sampling; pretreating and detecting the content of tribromoneopentyl alcohol and 2, 3-dibromopropanol in the pretreated target object; wherein the pretreatment step comprises the following steps: mixing a sample with tetrahydrofuran, and carrying out ultrasonic extraction treatment at a first temperature for a first duration; adding acetonitrile, carrying out ultrasonic extraction treatment for a second duration at a second temperature, and filtering to obtain a solution to be detected. According to the method for detecting the tribromoneopentyl alcohol and the 2, 3-dibromopropanol, the blank of national standard methods is filled, the requirements of customers with the detection requirements are met, operation is easy, used equipment is easy to obtain, popularization is extremely achieved, and the detection lower limit can reach 50 mg / kg.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for detecting tribromoneopentyl alcohol and 2,3-dibromopropanol. Background technique [0002] In recent years, as people's requirements for product safety have been increasing, the application of flame retardants has become increasingly widespread. Flame retardants can delay or block the combustion process of combustible materials, reduce the risk of fire, and ensure the safety of consumers' lives and properties. There are many kinds of flame retardants, among which brominated flame retardants are the most widely used one. Traditional brominated flame retardants, such as decabromodiphenyl ether, have been widely used in various products because of their excellent flame retardancy. However, such flame retardants have severe ecotoxicity, and their use has been increasingly restricted. [0003] Reactive flame retardants are a new generation of flame retardants. The pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062
Inventor 张亦伦
Owner 深圳天祥质量技术服务有限公司
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