Method for measuring organic acid radicals in cigarette paper

Abstract

The invention discloses a method for measuring organic acid radicals in cigarette paper, which comprises the following steps of: preparing organic acid radical standard liquid samples of different concentrations and allomaleic acid standard liquid samples of different concentrations; taking 10muL of the organic acid radical standard liquid samples and 10muL of the allomaleic acid standard liquid samples for conducting high performance liquid chromatograph analysis; obtaining a standard curve by using a peak area and the concentration of the organic acid radicals for drafting; cutting a cigarette paper sample to be measured into pieces in a conical flask with a stopper, adding a sulphuric acid solution with the pH value of 2 and oscillating for 25min at the speed of 200 rounds / min; after liquid made by oscillation is filtered by a filtering film, taking 10muL of a sample treating solution to be measured to conduct high performance liquid chromatograph analysis; determining the nature of the chromatogram peak position of each organic acid radical according to the retention time and reading out the concentration value of the organic acid radical from the standard curve by the measured peak area. The method overcomes the defects of relatively long analyzing time and uncommonly used instrument, is a method for fast measuring the organic acid radicals in the cigarette paper, with correct result and convenient operation, and can be applied to the tobacco industry.

Description

technical field [0001] The invention relates to a method for measuring organic acid, in particular to a method for measuring organic acid radicals in cigarette paper. Background technique [0002] Cigarette paper is an essential raw material for the production of cigarettes, accounting for about 5% of the total weight of cigarettes, but it plays a decisive role in the static burning speed and number of puffs of cigarettes. The addition of certain salts in cigarette paper has a great impact on its combustion characteristics and the external characteristics of ash, and some combustion regulators will also affect the taste of cigarettes. These additives are usually alkali metal salts of organic acids, and the added amount usually accounts for 0.5% to 2.0% of the weight of the cigarette paper. The most commonly used cigarette paper additives are citrate, acetate, malate, lactate, fumarate, succinate, tartrate. Since cigarette paper additives have a significant impact on cigare...

AI Technical Summary

Problems solved by technology

The current report is that the usual practice is to add an appropriate amount of deionized water to the sample, then extract it with ultrasonic waves, and then use ion chromatography for quantitative analysis. The disadvantage of this method is that the analysis time is relatively long, usually more than one hour for a sample, and all The equipment is not popular enough

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