Method for measuring harmful heavy metal substances arsenic and lead in tobacco tipping paper

Abstract

The invention discloses a method for measuring trace heavy metal arsenic and lead in tobacco tipping paper, and in particular relates to a method for measuring the content of arsenic and lead in the tobacco tipping paper by using a calibrated atomic fluorescence spectrophotometer after the tobacco tipping paper is digested by nitric acid and sulfuric acid on an electric heating plate or in an electric furnace. The conventional method is simplified, the acid is not required to be driven repeatedly, sample treatment time can be saved, the interference of antimony and nickel elements in a detection result can be effectively eliminated, a tipping paper sample is quickly and efficiently measured, measuring accuracy is improved, and the method is a novel and applicable electric heating nitric acid digestion atomic fluorescence quantitative measuring method for the content of the arsenic and the lead in the tobacco tipping paper.

Description

A method for the determination of harmful heavy metals arsenic and lead in tipping paper for cigarettes technical field The invention discloses a method for determining heavy metal traces of arsenic and lead in tipping paper for cigarettes. Specifically, it uses an electric heating plate (electric furnace) to digest nitric acid and sulfuric acid, and then uses a calibrated luminescent spectrophotometer to measure cigarette tipping paper. Paper contains arsenic and lead. Background technique Cigarette tipping paper is one of the cigarette materials that smokers directly contact with the oral cavity. The harmful heavy metals arsenic and lead in cigarette tipping paper may directly enter the human body through oral contact, endangering the health of smoking consumers. Therefore, the YC171-2008 "Tipping Paper for Cigarettes" standard lists arsenic and lead in tipping paper for cigarettes as the primary monitoring elements. At present, domestic arsenic detection methods are ...

AI Technical Summary

Problems solved by technology

Cigarette tipping paper is solid, and the main components are mostly inorganic elements and organic elements. The acid system ratio is not properly selected and the traditional microwave digestion method cannot complete the decomposition of the sample, and the interference is large. The acid system ratio is wrong. Improper method selection will directly affect the accuracy of the measurement, low anti-interference and low accuracy during the measurement, and the cost of the instruments used in the above-mentioned traditional methods is high

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