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Method for detecting phthalic ester in white emulsion for cigarette use

A technology of phthalates and phthalic acid, which is applied in the field of rapid determination of phthalates in white latex for cigarettes, can solve the problems of low precision, low recovery rate, environmental pollution, etc. The effect of good precision and high recovery rate

Active Publication Date: 2014-06-04
CHINA TOBACCO HEBEI INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the pretreatments for the determination of phthalates in samples use liquid-liquid extraction, solid-phase extraction, and simultaneous distillation extraction. Liquid-liquid extraction consumes a lot of organic reagents and causes certain pollution to the environment; the cost of solid-phase extraction Higher, and it may lead to higher background value during the processing; at the same time, the operation of distillation extraction method is cumbersome, time-consuming and labor-intensive
For the determination of phthalates in white latex for cigarettes, gas chromatography is generally used now. This method is troublesome to operate, the precision is not high, and the recovery rate is low.

Method used

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  • Method for detecting phthalic ester in white emulsion for cigarette use
  • Method for detecting phthalic ester in white emulsion for cigarette use
  • Method for detecting phthalic ester in white emulsion for cigarette use

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Embodiment Construction

[0016] The method for determining phthalates in white latex for cigarettes includes the configuration of standard working solution, preparation of sample solution, high performance liquid chromatography, drawing of standard curve and calculation of results.

[0017] The method of this embodiment:

[0018] 1. Configure standard working solution, weigh dimethyl phthalate, diethyl phthalate, butyl benzyl phthalate, dibutyl phthalate, diisophthalate Put 50 mg each of butyl ester, bis(2-ethylhexyl) phthalate, and n-dioctyl phthalate in a 100 mL volumetric flask, and dilute to the mark with acetonitrile to obtain the concentration of each phthalate. For a mixed standard solution of 500μg / mL, pipette 2mL, 1mL, 0.4mL, 0.2mL, 0.1mL, 0.02mL into six 10mL volumetric flasks, and dilute to the mark with acetonitrile respectively to prepare each phthalic acid A series of standard working solutions with ester concentrations of 100 μg / mL, 50 μg / mL, 20 μg / mL, 10 μg / mL, 5 μg / mL and 1 μg / mL;

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Abstract

The product discloses a method for phthalic ester in white emulsion for cigarette use, of which the concrete steps comprise: A preparing standard work solution, B preparing sample solution, C detecting and analyzing by high performance liquid chromatography, and D drafting a standard curve and calculating the result. The method is simple and rapid, and has good precision and high recovery rate.

Description

technical field [0001] The invention relates to a method for rapidly determining phthalates in white latex for cigarettes. Background technique [0002] Phthalic acid esters (PAEs) are widely used in cosmetics, lubricants, detergents, construction materials and pesticides, mainly as plasticizers and softeners. Studies have shown that phthalates act like estrogen in humans and animals, disturb the normal secretion system in animals, and have carcinogenic, teratogenic, and mutagenic effects, which seriously endanger human health. Dimethyl phthalate, diethyl phthalate, dibutyl phthalate, butyl benzyl phthalate, di(2-ethylhexyl) ester, di-n-octyl phthalate, etc. 6 One of them is listed as a key pollutant by the U.S. EPA, and my country has included dimethyl phthalate, dibutyl phthalate and dioctyl phthalate in the blacklist of priority pollutants for control, and the European Commission On January 29, 2003, it officially issued a directive to its member states to prohibit the us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 张艳芳鲍峰伟陈伟华何爱民苏国岁张卫东王馨郝红玲胡立朝张彦伟阎瑾牛丽娜刘伟
Owner CHINA TOBACCO HEBEI INDUSTRIAL CO LTD