Method for quantitatively analyzing non-volatile organic acids in tobacco essence and feed liquid

A quantitative analysis and tobacco flavoring technology, which is applied in the direction of analyzing materials, measuring devices, and material separation, can solve problems such as low efficiency, many interference factors, insufficient accuracy and sensitivity, and achieve accurate operation, good repeatability, and reduced Effects of Interference and Instrument Contamination

Inactive Publication Date: 2021-01-29
CHINA TOBACCO ZHEJIANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gas chromatography-mass spectrometry method suitable for the quantitative analysis of non-volatile organic acids in tobacco essence and feed liquid, which overcomes the many interference factors, low efficiency, accuracy and Insufficient sensitivity and other shortcomings

Method used

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  • Method for quantitatively analyzing non-volatile organic acids in tobacco essence and feed liquid
  • Method for quantitatively analyzing non-volatile organic acids in tobacco essence and feed liquid
  • Method for quantitatively analyzing non-volatile organic acids in tobacco essence and feed liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Instruments and reagents:

[0039] 10 kinds of organic acids: oxalic acid, malonic acid, succinic acid, malic acid, palmitic acid, citric acid, stearic acid, oleic acid, linoleic acid and linolenic acid, internal standard: adipic acid, all standard; methanol , Dichloromethane is chromatographically pure; concentrated sulfuric acid is analytically pure; pure water meets the requirements of first-class water in GB / T 6682.

[0040] 7890A / 5977A GC / MS; Swiss Mettler Toledo XP205 electronic balance (sensitivity: 0.0001g); TBOYS vortex oscillator; German SIGMA 4-16K centrifuge.

[0041] 2. Sample processing and GC / MS analysis:

[0042] see figure 1 , Accurately weigh 1.0 g of tobacco flavor and fragrance sample, place it in a 50 mL centrifuge test tube, add 5 mL of 10% methanolic sulfuric acid solution and 50 μL of adipic acid internal standard solution (10 mg / mL), shake well, and let stand for 24 hours. Then add 10 mL of water and 5 mL of dichloromethane, screw the cap t...

Embodiment 2

[0096] As described in Example 1, another liquid B was selected, and the contents of 10 organic acids in the sample were measured in Table 7.

[0097] The detection result (mg / kg) of 10 kinds of organic acids in table 7 feed liquid B

[0098]

Embodiment 3

[0100] As described in Example 1, another essence A was selected, and the contents of 10 organic acids in the sample were measured in Table 7.

[0101] The detection results (mg / kg) of 10 kinds of organic acids in table 7 essence A

[0102]

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Abstract

The invention provides a method for quantitatively analyzing non-volatile organic acids in tobacco essence and feed liquid, and particularly relates to a method for determining by derivatizing a tobacco additive sample by using a sulfuric acid methanol solution with a certain concentration, extracting by using dichloromethane, centrifugally separating, taking a subnatant, enabling the subnatant topass through a membrane, and selecting an ion mode by using GC / MS.

Description

technical field [0001] The invention belongs to the technical field of analysis and detection of organic acids in tobacco additives (essence and feed liquid), and mainly relates to the determination technology of non-volatile organic acids in tobacco additives (essence and feed liquid), specifically a kind of tobacco additive After the sample is derivatized with a certain concentration of sulfuric acid methanol solution, it is extracted with dichloromethane, centrifuged, and the supernatant is removed to pass through the membrane, and the method is determined by GC / MS selected ion mode. Background technique [0002] Tobacco flavors and feed liquids are an important class of tobacco additives. Cigarette companies add different flavors and feed liquids to improve the taste of cigarettes. Tobacco essence and feed liquid have complex components, mainly including alcohols, esters and acids. Various substances have different effects on tobacco aroma. Organic acids are divided in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88G01N30/06G01N30/14
CPCG01N30/88G01N30/06G01N30/14G01N2030/884G01N2030/062G01N2030/067G01N2030/146G01N2030/045
Inventor 汤晓东苏燕陈晓水蒋佳磊张丽娜杨君朱书秀陆明华
Owner CHINA TOBACCO ZHEJIANG IND
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