Method for measuring ammonia content in mainstream smoke of cigarettes

Abstract

The invention provides a method for gathering ammonia in both gaseous phase and grain phase in the mainstream smoke of cigarettes simultaneously. The method adopts fiberglass filter discs containing hydrochloric acid for gathering ammonia in the mainstream smoke. According to the method for measuring the ammonia content in the mainstream smoke of cigarettes, provided by the invention, the gathering device is simple, the operation method is simple and convenient, the measuring result is accurate and the test cycle is shortened.

Description

technical field [0001] The invention belongs to the field of cigarette mainstream smoke detection, in particular to a method for measuring ammonia content in cigarette mainstream smoke. Background technique [0002] In cigarettes, an appropriate amount of ammonia is necessary for cigarettes with more carbohydrates and organic acids, but excessive ammonia will produce strong irritation, which not only affects the taste of cigarettes, but also stimulates the visual and respiratory systems of the human body. Inhalation can cause serious harm to the human body, so ammonia is regarded as one of the 44 harmful components in the "Hoffmann List". Ammonia in cigarette smoke mainly comes from the conversion of nitrogen-containing compounds in tobacco, the content is relatively low, and the composition of cigarette smoke is complex, so how to measure the ammonia content in smoke has always been a challenging task. [0003] About 80% of the ammonia in the mainstream smoke of cigarettes...

AI Technical Summary

Problems solved by technology

At present, the domestic tobacco industry, HEALTHCANADA and other international organizations usually use Cambridge filters to capture ammonia in the particulate phase of mainstream smoke, and at the same time use acid solutions to capture ammonia in the gas phase of mainstream smoke. The pretreatment steps of this method are cumbersome and the workload is large.

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