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Method for detecting content of four pigments in tobacco shreds for cigarettes

A measurement method and technology of shredded tobacco, which is applied in the field of physical and chemical inspection of tobacco accessories, can solve problems such as hazards, and achieve the effects of good repeatability, easy operation, and short detection time

Active Publication Date: 2013-02-27
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The results of the study show that children who often take food with artificial additives are likely to cause some harm

Method used

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  • Method for detecting content of four pigments in tobacco shreds for cigarettes
  • Method for detecting content of four pigments in tobacco shreds for cigarettes
  • Method for detecting content of four pigments in tobacco shreds for cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, the determination method for the content of four pigments (titrazine, amaranth, carmine and sunset yellow) in shredded cigarette tobacco is as follows (the flow chart of the detection method is as follows figure 1 shown)

[0041] (1) Preparation of standard solution: Weigh 25mg (accurate to 0.1mg) of each of the four pigments (lemon yellow, amaranth, carmine and sunset yellow), dissolve them in ultrapure water and transfer them to a 50mL volumetric flask, and dilute to Scale and shake well, as the primary mother liquor; take 1mL of the primary mother liquor into a 50mL volumetric flask, dilute to the mark with ultrapure water, and use it as the secondary mother liquor; accurately pipette 10μL, 50μL, 100μL, 200μL, 500μL, 1000μL respectively Put the second-level mother liquor into a 10mL volumetric flask, and dilute to the mark with ultrapure water to obtain a series of standard working solutions, which are stored at 2°C-8°C and are valid for one month...

Embodiment 2

[0055] The present embodiment is as follows to the detection method of the repeatability of the inventive method and the standard addition recovery rate

[0056] Adopt the standard addition recovery test of sample, add the standard solution of three different concentrations of low, medium and high respectively in the sample and carry out standard addition recovery test, each sample measures 6 times respectively, the condition of chromatographic analysis is the same as embodiment 1, calculates according to analysis result The standard addition recoveries of tartrazine, amaranth, carmine and sunset yellow in shredded tobacco of this method and the relative standard deviation of measured value after standard addition, the results are shown in Table 2:

[0057]

[0058] It can be seen from Table 2 that at the three spiked levels, the average recoveries of the four pigments (lemon yellow, amaranth, carmine and sunset yellow) detected in shredded cigarette tobacco by this method w...

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Abstract

A method for detecting the content of four pigments (lemon yellow, amaranth, carmine and sunset yellow) in tobacco shreds for cigarettes comprises the steps of preparing a sample solution, performing liquid chromatogram analysis, calculating detected results and the like. After optimized, the method has the advantages of being short in detection time, simple and convenient to operate, high in sensitivity and recovery rate, good in repeatability and the like. The chromatographic condition of the method enables the lemon yellow, the amaranth, the carmine and the sunset yellow to be separated well, the method has good correlation, a detecting range is limited from 0.02mug to 0.03mug, the average recovery rates are respectively 102.47%, 92.48%, 89.94% and 96.66%, and average relative standard deviations of sample testing results are respectively 3.18%, 2.63%, 2.74% and 3.02%, so that the method is high in recovery rate and good in repeatability. The method for detecting the content of four pigments in tobacco shreds for cigarettes provides a scientific basis for quality surveillance of the cigarettes.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical testing of tobacco auxiliary materials, and in particular relates to a method for measuring the contents of four pigments (lemon yellow, amaranth, carmine and sunset yellow) in shredded tobacco of tobacco cigarettes. Background technique [0002] Artificial synthetic pigments such as amaranth, carmine, lemon yellow, and sunset yellow are synthesized from chemical products such as benzene, toluene, and naphthalene through a series of complex processes such as sulfonation, nitration, halogenation, and azolation. It has certain toxicity, but it is widely used because of its low cost, bright color and strong tinting power. However, a large number of research reports point out that almost all synthetic pigments cannot provide nutrients to the human body, and some synthetic pigments may even endanger human health, leading to decreased fertility, teratogenicity, etc., and some synthetic pig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 张洪非唐纲岭边照阳刘洋刘楠杨飞姜兴益刘珊珊孙莹莹邢军胡清源
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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