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Method for measuring main stream smoke of cigarettes by using amino acid analyzer

A technology of cigarette mainstream smoke and mainstream smoke, applied in the field of analytical chemistry, can solve problems such as unsatisfactory analysis results and sodium ion interference, and achieve good reproducibility, ensure accuracy, and good reproducibility

Inactive Publication Date: 2012-12-26
GUIZHOU TOBACCO SCI INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when this method encounters samples with high sodium and low ammonia, the analytical results will be unsatisfactory.
Due to the ubiquity of sodium ions in glassware and Cambridge filters, the interference of sodium ions is difficult to avoid

Method used

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  • Method for measuring main stream smoke of cigarettes by using amino acid analyzer
  • Method for measuring main stream smoke of cigarettes by using amino acid analyzer
  • Method for measuring main stream smoke of cigarettes by using amino acid analyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Measuring instruments and implementation conditions:

[0032] 1.1 Chromatographic conditions of amino acid analyzer

[0033] S-433D amino acid analyzer-dual-wavelength ultraviolet detector, equipped with Clarity Amino software (Germany SYKNM company); chromatographic column: SYKNM LCAK06 / Na (4.6×150mm); flow rate of ninhydrin solution: 0. 25mL / min, inflow start and stop Time: 2-8min; Detection wavelength: 570nm; Reaction temperature: 138°C Injection volume: 50μL; Idle time before injection: 8min. See Table 1 and Table 2 for elution conditions and column temperature programs.

[0034]

[0035]

[0036] Auxiliary instruments:

[0037]SM450 linear smoking machine (British CERULEAN company); electronic balance (Swiss Merrier Toledo company, AB104-S, max 220 g, d=0.1 mg); KS multi-purpose speed-adjustable shaker oscillator (Beijing Kewei Technology Instrument Co., Ltd.) ;Ultrapure water system (Millipore, USA, Milli-Q Element);

[0038] 1.3 Reagents and samples:...

Embodiment 2

[0052] Smoking 10 copies of the same cigarette samples, 4 sticks / part, divided into 2 groups, 5 copies in one group. One group was measured in parallel 5 times according to the experimental conditions of 1.2.1, and the repeatability of the method was calculated. Another group of samples was added with 40.0664 ug of NH 4 + For the reference substance, the recovery rate is calculated according to the amount of the standard sample added and the measured amount of the sample before and after adding the standard, and the interference of ammonia in the environment is eliminated by performing a blank test during the cigarette smoking process. The results show that the precision measurement RSD of solanesol is 1.25%, and the recovery rate is 97.6%, which shows that the method of the present invention has high accuracy and good repeatability.

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Abstract

The invention discloses a method for measuring main stream smoke of cigarettes by using an amino acid analyzer. The analytical method which is used for measuring ammonia in the main stream smoke of cigarettes by using the amino acid analyzer and a post column derivation device thereof is established according to the selection specificity of color development reaction of ammonia and ninhydrin and by using the design principle of the amino acid analyzer and improving an amino acid analysis method, and the problem of sodion interference puzzled by ion chromatography is successfully avoided; and the method disclosed by the invention is simple, convenient, rapid and accurate and is suitable for actual analysis and detection of a cigarette smoke sample.

Description

technical field [0001] The invention belongs to the field of analytical chemistry, in particular to a method for measuring ammonia in cigarette mainstream smoke with an amino acid analyzer. Background technique [0002] Ammonia is a colorless, irritating alkaline gas. Because of its wide use in architectural design, air-conditioning design, etc., it has become an important indoor air pollutant like formaldehyde. Ammonia has a corrosive and irritating effect on the skin tissue it contacts. It can absorb moisture in the skin tissue, denature tissue protein, saponify tissue fat, and destroy the cell membrane structure. Low levels of ammonia in the environment (10μg / m 3 ) will cause throat irritation, shortness of breath, and high levels of ammonia (750 mg / m 3 ) may even cause chronic obstructive pulmonary disease, and long-term inhalation will cause serious harm to the human body and even death. As early as 2002, my country included ammonia in the indoor air monitoring inde...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/88
Inventor 张婕耿召良周淑平朱显灵鲍峰伟高川川朱文静葛永辉蔡凯向章敏
Owner GUIZHOU TOBACCO SCI INST
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