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A method for measuring 7 colorants in a filter capsule

A technology of coloring agent and popping beads, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of unspecified limit requirements and unspecified detection methods of synthetic colorants in cigarette popping beads, so as to meet the test requirements and prevent false positives. Effects of positivity, good recovery, and precision

Inactive Publication Date: 2019-04-30
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the tobacco industry has not stipulated the detection method of synthetic colorants in cigarette popping beads, nor has it specified the limit requirements. How to use this method for the detection of synthetic coloring agents in cigarette popping beads and ensure its accuracy and precision is worth studying

Method used

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  • A method for measuring 7 colorants in a filter capsule
  • A method for measuring 7 colorants in a filter capsule
  • A method for measuring 7 colorants in a filter capsule

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0036] The method for measuring 7 kinds of coloring agents in the quick-fried beads of the present embodiment comprises the following steps:

[0037] Step (1), standard solution configuration

[0038] Weigh 0.025 g of 7 colorant standard substances into 25 mL volumetric flasks, accurate to 0.0001 g, dilute to volume with pure water, and prepare a single standard stock solution with a concentration of 1000 μg / mL. Then pipette 1 mL of each single standard stock solution into a 10 mL volumetric flask, and dilute to volume with pure water to obtain a mixed stock solution with a concentration of 100 μg / mL for each colorant, and store it at 4°C for future use.

[0039] Step (2), sample processing

[0040] Weigh 0.2 g of pop-up beads into a 50 mL centrifuge tube, add 20 mL of water, homogenize with a homogenizer at 15,000 r / m for 2 min, then add 5 mL of n-hexane to vortex for 2 min, and centrifuge at 4,000 r / m for 5 min. The aqueous phase layer was filtered through a 0.22 μm filter...

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Abstract

The invention relates to a method for measuring 7 colorants in a filter capsule. The method comprises configuration of a standard solution, sample processing and ultra-high performance liquid chromatography tandem mass spectrum analysis and calculation. The linear range of the 7 colorants detected in the method is 0.02 mcg / mL-5mcg / mL; in 3 standard addition levels, average recovery rate is 85.2%-105%, and relative standard deviation is 2.1%-4.6%; and limit of quantitation is 0.4-5.0 mcg / g. The method is sensitive and accurate, and is suitable for content analysis of 7 colorants in the filter capsule.

Description

technical field [0001] The invention relates to a method for measuring colorants, in particular to a method for measuring seven colorants in popping beads. Background technique [0002] Popping beads are a kind of flavor capsules embedded in cigarette filters that wrap different types of flavors and are easy to pinch. When they are pinched during cigarette smoking, they can release special flavors, highlight the individual characteristics of the product, and improve cigarette smoking. The role of suction quality. Due to the unique role of popping beads in improving the sensory characteristics of cigarettes, it has become a new hot spot in Chinese cigarettes in recent years. Popping bead products are composed of two parts: wall material and core material. The core material is mainly the essence wrapped, and the wall material is mainly natural rubber. In order to distinguish different specifications or aroma characteristics, most pop beads are produced in colored patterns u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 李雪梅陈章玉杨文武张建铎许力蒋佳芮宋春满
Owner CHINA TOBACCO YUNNAN IND