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A method for determining the content of guanidine phosphate in textiles and filling materials

A technology of filling materials and guanidine phosphate, which is applied in the field of analytical chemistry, can solve the problems of no method for detecting the content of flame retardant guanidine phosphate, and achieve the effect of fast and accurate determination of the method

Active Publication Date: 2019-02-15
SGS CSTC STANDARDS TECH SERVICES (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the present invention will solve above-mentioned deficiency exactly and provide a kind of method for measuring the content of guanidine phosphate in textiles and filling materials, not only measuring method is fast, simple, but also can realize the accurate mensuration of guanidine phosphate content in textiles and filling materials, solved There is currently no problem with the method for detecting the content of the flame retardant guanidine phosphate

Method used

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  • A method for determining the content of guanidine phosphate in textiles and filling materials
  • A method for determining the content of guanidine phosphate in textiles and filling materials
  • A method for determining the content of guanidine phosphate in textiles and filling materials

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1: the mensuration of guanidine phosphate content in the filling cotton

[0030] 1. Preparation of sample solution:

[0031] Crush the stuffing cotton with a pulverizer, the size of the sample shall not exceed 2mm×2mm×2mm, mix it evenly, put it into a clean and dry ziplock bag, and seal it for later use. Weigh 0.3g of the sample into a 40mL glass screw bottle, add 30mL of methanol-water (85︰15) solution, tighten the bottle cap and extract ultrasonically in a 60°C water bath for 60min, after cooling, take 20mL of the extract and pass through a 0.45μm PTFE organic phase Membrane filtration in a 50mL flat-bottomed flask. The solution in the flat-bottomed flask was rotary evaporated at 70°C to nearly dryness, and the residue was dissolved with methanol-water (85:15) solution and the volume was adjusted to 1 mL, mixed well, and analyzed by liquid chromatography-mass spectrometry.

[0032] 2. Set the instrument parameters:

[0033] 1) The liquid chromatographic ...

Embodiment 2

[0048] Embodiment 2: the mensuration of guanidine phosphate in cotton cloth

[0049] 1. Sample preparation:

[0050] Cut the cotton cloth with scissors, the sample size shall not exceed 2mm×2mm×2mm, mix well, put it into a clean and dry ziplock bag, seal it for later use. Weigh 0.3g of the sample into a 40mL glass screw bottle, add 30mL of methanol-water (85︰15) solution, tighten the bottle cap and extract ultrasonically in a 60°C water bath for 60min, after cooling, take 20mL of the extract and pass through a 0.45μm PTFE organic phase Membrane filter in a 50mL flat bottom flask. The solution in the flat-bottomed flask was rotary evaporated at 70°C to nearly dryness, and the residue was dissolved with methanol-water (85:15) solution and the volume was adjusted to 1 mL, mixed well, and analyzed by liquid chromatography-mass spectrometry.

[0051] 2. Set the instrument parameters:

[0052]1) The liquid chromatographic column adopts ZIC-cHILIC column, the specifications are co...

Embodiment 3

[0068] Embodiment 3: the mensuration of guanidine phosphate content in the foam

[0069] 1. Preparation of sample solution:

[0070] Crush the foam with a pulverizer, the size of the sample shall not exceed 2mm×2mm×2mm, mix well, put it into a clean and dry ziplock bag, and seal it for later use. Weigh 0.3g of the sample into a 40mL glass screw bottle, add 30mL of methanol-water (85︰15) solution, tighten the bottle cap and extract ultrasonically in a 60°C water bath for 60min, after cooling, take 20mL of the extract and pass through a 0.45μm PTFE organic phase Membrane filtration in a 50mL flat-bottomed flask. The solution in the flat-bottomed flask was rotary evaporated at 70°C to nearly dryness, and the residue was dissolved with methanol-water (85:15) solution and the volume was adjusted to 1 mL, mixed well, and analyzed by liquid chromatography-mass spectrometry.

[0071] 2. Set the instrument parameters:

[0072] 1) The liquid chromatographic column adopts ZIC-cHILIC c...

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Abstract

The invention relates to a method for detecting the content of guanidine phosphate in textile and a filling material. The method comprises the following steps: 1, preprocessing a sample: shearing a textile or filling material sample by scissors or crushing the sample by a crusher in order to form a sample with the dimension size not exceeding 2*2*2 mm, uniformly mixing the sample, filling a clean and dry valve bag with the sample, and sealing the valve bag for later use; 2, extracting the sample: weighing a proper amount of the sample, and carrying out ultrasonic extraction by using a methanol-water solution; 3, detecting the concentration of guanidine phosphate in a sample extract solution obtained in step 2 through adopting liquid chromatography-mass spectrometry; and 4, calculating the content of the guanidine phosphate in the sample according to the concentration of the guanidine phosphate in the sample extract solution, obtained in step 3. The detection method is fast and simple, and can realize accurate detection of the guanidine phosphate in textile and the filling material, the lowest quantification concentration is 5 mg / kg, and a problem that no methods for detecting the content of a fire retardant guanidine phosphate exist is solved.

Description

[technical field] [0001] The invention belongs to the technical field of analytical chemistry, in particular to a method for measuring the content of guanidine phosphate in textiles and filling materials. [Background technique] [0002] In order to meet the needs of social safety in production and life, prevent fires, and protect people's lives and property, flame retardant science and technology have emerged as the times require. Flame retardant is the application of flame retardant technology in actual production and life. It is a special chemical additive used to improve the combustion performance of flammable and combustible materials. It is widely used in the flame retardant processing of various materials. Materials processed with flame retardants can effectively prevent, delay or terminate the spread of flames when attacked by external fire sources, so as to achieve the effect of flame retardancy. Traditional flame retardants represented by halogenated flame retardan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 杜佳斌俞安敏冯颖王培花
Owner SGS CSTC STANDARDS TECH SERVICES (SHANGHAI) CO LTD
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