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Ion chromatography detection method for six negative ions in cigarette paper

A technology of ion chromatography and detection method, which is applied in the field of detection of reconstituted tobacco leaves, can solve problems such as the difficult separation of lactate and acetate, and achieve the effects of remarkable extraction efficiency, simple pretreatment, and safe and convenient reagents

Active Publication Date: 2016-07-20
CHINA TOBACCO GUANGDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

AS11-HC has a good separation effect on most anions, which can meet its qualitative and quantitative analysis. However, the applicant has concluded a large number of long-term studies and found that it is difficult for AS11-HC to separate lactate and acetate.

Method used

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  • Ion chromatography detection method for six negative ions in cigarette paper
  • Ion chromatography detection method for six negative ions in cigarette paper
  • Ion chromatography detection method for six negative ions in cigarette paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 Establishment of detection method

[0029] 1.2 Chromatographic working conditions

[0030] IonPacAS19 anion exchange column (4×250mm); KOH eluent; flow rate of 1.5mL / min; suppression current of 149mA; column temperature of 23°C; sample volume of 25μL; see Table 1 for gradient elution procedures.

[0031] Table 1 Gradient elution conditions

[0032]

[0033] 1.3 Preparation of standard curve

[0034] Prepare 1000μg / mL lactate, acetate, formate, chloride, phosphate stock solutions and 2000μg / mL citrate stock solutions, and then take different volumes of stock solutions and place them in a 25mL volumetric flask. Use ultrapure water Dilute the volume to the mark, shake well, and prepare mixed standard solutions of different concentrations. The concentration ranges of the 6 anions are: lactate (0~5μg / mL), acetate (0~5μg / mL), formate (0~5μg / mL), chloride ion (0~5μg / mL), phosphoric acid Root (0~40μg / mL), citrate (0~240μg / mL).

[0035] 1.4 Sample preparation

[0036] Accuratel...

Embodiment 2

[0053] Example 2 Determination of actual samples

[0054] According to the method of the present invention, the contents of six anions of lactate, acetate, formate, chloride, phosphate and citrate in five cigarette paper samples of different specifications were determined, and the determination results are shown in Table 4.

[0055] The results showed that in the cigarette paper samples of different specifications, the additive amount was quite different. For example, no phosphate was detected in samples 1, 2, and 3, while the content of phosphate in sample 5 reached 1.5187 mg. / g; In the same cigarette paper sample, the additive amount of each additive is also quite different. For example, in the cigarette paper samples of No. 2 and 3, no phosphate is detected, while the content of citrate is 14.7841 mg / g, 11.3577mg / g.

[0056] Table 4 Contents of 6 anions in actual samples

[0057]

[0058]

[0059] -Means not detected.

[0060] The invention adopts ion chromatography to realize the...

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Abstract

The invention discloses an ion chromatography detection method for six negative ions in cigarette paper.Ultrapure water is adopted as an extracting agent, IonPac AS19 negative ion exchange columns are separation columns, chromatographic conditions are optimized in a targeted mode, and the ion chromatography is adopted for achieving quantitative analysis of lactate, acetate, formate, chloridion, phosphate radicals and citrate in cigarette paper samples.A result shows that the recycling rates of the six negative ions range from 91.0% to 109.5%, and the relative standard deviation ranges from 0.82% to 6.26%.The method is accurate, simple, reliable and applicable to quantitative determination of relative components, particularly six negation ions in the cigarette paper samples.

Description

Technical field [0001] The technical field of detection of reconstituted tobacco leaves of the present invention, more specifically, relates to an ion chromatography detection method for 6 anions in cigarette paper. Background technique [0002] Cigarette paper is one of the main auxiliary materials of cigarettes and directly participates in combustion. Its characteristics directly affect the combustibility, aroma and taste of cigarettes, and are directly related to the safety of cigarette products. The additives in cigarette paper are mainly combustion regulators, ash regulators and a small amount of flavor regulators, which positively adjust the performance of cigarette paper such as mainstream smoke, air permeability, uniformity, burning rate, ash-packing performance, etc. effect. [0003] Lactate, chloride ion and phosphate play a role in regulating the burning rate of cigarette paper in cigarette paper, while phosphate can also be used as an ash regulator to make ash firm and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88G01N30/06
CPCG01N30/06G01N30/88G01N2030/8809
Inventor 王予施文庄高仁吉
Owner CHINA TOBACCO GUANGDONG IND
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