Method for simultaneous and in-situ capture of phenolic compounds and ammonia in cigarette mainstream smoke by using liquid adding filtration discs

Abstract

The invention discloses a method for simultaneous and in-situ capture of phenolic compounds and ammonia in cigarette mainstream smoke by using liquid adding filtration discs. The method comprises: A)mainstream smoke capture, wherein qualified cigarettes are selected according to weight and smoking resistance, a pre-treated filtration disc and a standard filtration disc are placed into a cigaretteclamper, the pre-treatment filtration disc is used at 1-3 h after a pre-treatment liquid is added, the cigarette is smoked by a linear smoking machine under a standard condition, each pore channel smokes four cigarettes, and the mainstream smoke of the cigarette is captured by a Cambridge filtration disc; B) filtration disc extraction, wherein the two filtration discs are placed into a hydrochloric acid solution with a concentration of 0.01 mol / L after the smoking is completed, oscillation is performed for 40 min at a room temperature at a rotation speed of 150 r / min, filtering is performed with a 0.45 [mu]m aqueous phase filtration membrane, and the sample is taken and is respectively analyzed through liquid chromatography and ion chromatography; and C) instrument analysis condition setting, wherein the liquid chromatography instrument conditions for determining the phenol-based compounds use the YC / T255-2008 cigarettes-determination of major phenolic compounds in mainstream cigarette smoke-high-performance liquid chromatography method, and the ion chromatography instrument conditions for determining the ammonia use YC / T 377-2010 cigarettes-determination of ammonia in mainstreamcigarette smoke-ion chromatography method.

Description

technical field [0001] The invention relates to a method for simultaneously capturing phenolic compounds and ammonia in cigarette mainstream smoke in situ by using a liquid-added filter sheet, and belongs to the technical field of quality detection of tobacco and tobacco products. Background technique [0002] At present, the tobacco industry quality inspection agencies use YC / T255-2008 and YC / T 377-2010 to measure phenolic compounds and ammonia in cigarette mainstream smoke respectively. For the same cigarette sample, it is necessary to use the smoking machine to smoke twice. Especially in the process of measuring ammonia in mainstream flue gas, it is necessary to use Cambridge filter and series absorption bottle to capture the ammonia in the particulate phase and gas phase respectively, and its shortcomings mainly include three aspects: [0003] 1) The operation procedure is cumbersome and complicated: the installation of the absorption bottle, the addition of the absorpt...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: at present, the tobacco industry follows the standard YC / T 255-2008 determination of main phenolic compounds in cigarette mainstream smoke by high performance liquid chromatography and YC / T 377-2010 determination of ammonia in cigarette mainstream smoke. Determine phenolic compounds and ammonia respectively by ion chromatography. The method of the present invention integrates the above two standards, which can improve detection efficiency, reduce reagent consumption, and reduce costs, and the measurement results of the method are consistent with the two currently used industry standards. There was no significant difference in the results of the

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