Method for determining ammonia content in cigarette main stream smoke by ion chromatography

A cigarette mainstream smoke and ion chromatography technology, which is applied in the field of cigarette mainstream smoke analysis, can solve problems such as difficult elution, and achieve good symmetry

Active Publication Date: 2015-08-05
CHINA TOBACCO SICHUAN IND CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention overcomes the deficiencies of the prior art, and provides a method for measuring ammonia content in cigarette mainstream smoke by ion chromatography, in order to solve the problem of NH 4 + Chromatographic peak tailing and

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  • Method for determining ammonia content in cigarette main stream smoke by ion chromatography
  • Method for determining ammonia content in cigarette main stream smoke by ion chromatography
  • Method for determining ammonia content in cigarette main stream smoke by ion chromatography

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Embodiment 1

[0037] Commercially available commercial cigarettes were sorted according to cigarette weight and draw resistance, and then equilibrated at 22±2°C and relative humidity (60±5)% for 48 hours. Use a rotary smoking machine to smoke cigarettes in accordance with the requirements specified in GB / T 16450-2004. Use the absorption bottle specified in the tobacco industry standard YC / T 377-2010, add 50mL of 0.005mol / L sulfuric acid solution into the absorption bottle, and collect the ammonia passing through the Cambridge filter. After the cigarette is smoked, put the filter piece that has captured the particulate phase components into a 250mL extraction bottle, add 50mL of 0.005mol / L sulfuric acid solution, shake and extract for 40min (oscillation frequency 160rpm), and accurately pipette the mainstream smoke of the cigarette. Add 5mL each of the gas-phase absorption solution and the particle-phase extraction solution to a 50mL volumetric flask, dilute to volume with 0.005mol / L sulfuri...

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Abstract

The invention discloses a method for determining ammonia content in cigarette main stream smoke by ion chromatography, which comprises the following steps: trapping ammonia in main stream smoke by using a sulfuric acid solution as an extracting solution and absorption solution to prepare an ammonia sulfuric acid solution, filtering, and carrying out ion chromatography analysis. The ion chromatography analysis uses a CS19 chromatographic column. A 0.002 mol/L methanesulfonic acid solution is adopted for the 0th-11.0th minutes in the elution step, the concentration of the methanesulfonic acid for the 11.1th-22.0th minutes in the elution step is 0.050 mol/L, and the concentration of the methanesulfonic acid for the 22.1th-30.0th minutes in the elution step is restored to 0.002 mol/L. The cigarette sample obtained by the method has favorable NH4<+> chromatogram peak symmetry, thereby avoiding the influence of high-concentration Na<+> on the NH4<+> determination; the Na<+>, methylamine, ethylamine and NH4<+> in the sample solution have favorable separation degree; and thus, the method can satisfy the requirements for determination of ammonia content in cigarette main stream smoke.

Description

technical field [0001] Embodiments of the present invention relate to the field of cigarette mainstream smoke analysis, and more specifically, embodiments of the present invention relate to a method for determining ammonia content in mainstream cigarette smoke by ion chromatography. Background technique [0002] For the determination of ammonia content in mainstream smoke of cigarettes, at present, domestic and foreign tobacco industry researchers and analysts mainly use ion chromatography. During ion chromatography analysis, CS12A chromatographic column produced by Dionex Company is mainly used for separation and conductivity detector. detection. The tobacco industry's recommended standard "YC / T 377-2010 Ion Chromatography for the Determination of Ammonia in Cigarette Mainstream Smoke", the analysis method "Health Canada test method T-101" of the Canadian Health Agency, British American Tobacco Group (British American Tobacco Group, The standard method (Determination of Am...

Claims

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Application Information

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IPC IPC(8): G01N30/02
Inventor 李力戴亚马扩彦肖克毅唐士军
Owner CHINA TOBACCO SICHUAN IND CO LTD
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