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Analytical method for pyridine content in fire retardant

An analytical method and flame retardant technology, applied in the field of analytical chemistry, to achieve the effect of fast and convenient method and stable and accurate data

Active Publication Date: 2013-10-30
南通泰洁能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] There are many methods for measuring pyridine content in the prior art, but there is no detailed report on the determination of pyridine content in flame retardants. In the same industry, relatively high-end measuring instruments are generally required for the determination of pyridine content in flame retardants. Gas chromatograph is difficult to measure it accurately

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  • Analytical method for pyridine content in fire retardant

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Embodiment 1

[0022] A method for analyzing pyridine content in flame retardants. Acetone is used as a solvent for the standard sample, n-decane is used as an internal standard, and the pyridine content in flame retardants is analyzed with HP-1 capillary column and hydrogen flame ion detector. Gas chromatographic determination and separation, comprising the following steps:

[0023] 1. Preparation of internal standard solution: Dilute 1.25g of n-decane as an internal standard in a 250mL volumetric flask, dilute to the mark with acetone, shake well, and prepare an internal standard solution of 0.005g / mL;

[0024] 2. Preparation of standard sample solution: put 0.05g standard sample in a 10mL volumetric flask, add 5.0mL internal standard solution, and prepare 0.01g / mL standard sample solution;

[0025] 3. Preparation of the sample solution: Put the sample containing 0.1g of pyridine in a 10mL volumetric flask, add 5.00mL of the above-mentioned internal standard solution, and prepare a 0.02g / m...

Embodiment 2

[0028] A method for analyzing pyridine content in flame retardants. Acetone is used as a solvent for the standard sample, n-decane is used as an internal standard, and the pyridine content in flame retardants is analyzed with HP-1 capillary column and hydrogen flame ion detector. Gas chromatographic determination and separation, comprising the following steps:

[0029] 1. Preparation of internal standard solution: Dilute 1.50 g of n-decane as an internal standard in a 250 mL volumetric flask, dilute to the mark with acetone, shake well, and prepare an internal standard solution of 0.005 g / mL;

[0030] 2. Preparation of standard sample solution: Put 0.10g standard sample in a 10mL volumetric flask, add 5.0mL internal standard solution, and prepare 0.02g / mL standard sample solution;

[0031] 3. Preparation of the sample solution: Put the sample containing 0.15g of pyridine in a 10mL volumetric flask, add 5.00mL of the above-mentioned internal standard solution, and prepare a 0.0...

Embodiment 3

[0034] 1. Preparation of internal standard solution: Dilute 1.00 g of n-decane as an internal standard in a 250 mL volumetric flask, dilute to the mark with acetone, shake well, and prepare an internal standard solution of 0.005 g / mL;

[0035] 2. Preparation of standard sample solution: put 0.07g standard sample in a 10mL volumetric flask, add 5.0mL internal standard solution, and prepare 0.015g / mL standard sample solution;

[0036] 3. Preparation of sample solution: Put the sample containing 0.05g of pyridine in a 10mL volumetric flask, add 5.00mL of the above internal standard solution, and prepare a 0.01g / mL sample solution;

[0037] 4. Determination: Under the above stable conditions, use the gas chromatograph to operate, inject a few needles of the standard sample solution until the ratio of the chromatographic peak area of ​​the standard sample to the internal standard is not greater than 1% in two adjacent needle injections, press Insert the needle in the following orde...

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Abstract

The invention discloses an analytical method for pyridine content in a fire retardant. A standard sample employs acetone as a solvent and employs decane as an internal standard substance. By utilizing an HP-1 capillary column and a hydrogen flame ionization detector, the pyridine content in a fire retardant is detected by a gas chromatography and the pyridine in the fire retardant is separated by the gas chromatography. The analytical method is selected out after repeated trial screening. By utilizing an HP-1 capillary column and a gas chromatograph with a hydrogen flame ionization detector, by employing acetone as a solvent and decane as an internal standard substance, accurate quantitative detection analysis of pyridine in a fire retardant product can be carried out, the data is stable and accurate and the method is rapid and convenient.

Description

technical field [0001] The invention relates to the field of analysis chemistry, and relates to an analysis method for pyridine content in a flame retardant. Background technique [0002] There are many methods for measuring pyridine content in the prior art, but there is no detailed report on the determination of pyridine content in flame retardants. In the same industry, relatively high-end measuring instruments are generally required for the determination of pyridine content in flame retardants. It is difficult to accurately measure it by gas chromatography. Contents of the invention [0003] Purpose of the invention: In order to solve the deficiencies of the prior art, the present invention provides a method for analyzing pyridine content in flame retardants with stable and accurate data, fast and convenient method. [0004] Technical solution: An analysis method for pyridine content in flame retardants. The standard sample uses acetone as a solvent, n-decane as an in...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
Inventor 周树华徐冯玉
Owner 南通泰洁能源科技有限公司
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