Visualization method for regional distribution of contents of heavy metals in tobacco

Abstract

The invention discloses a visualization method for regional distribution of contents of heavy metals in tobacco. The visualization method comprises the following steps: (1), in tobacco planting regions, with the county-level producing area as a unit, using ICP-MS to detect the contents of various heavy metal elements in tobacco in each county-level producing area; (2), calculating individual evaluation indexes of the content of each heavy metal element in tobacco in each county-level producing areas; (3), calculating comprehensive evaluation indexes of the heavy metal element contents in tobacco in each county-level producing area; (4), respectively drawing geostatistical distribution diagrams of the individual evaluation indexes and the comprehensive evaluation indexes so as to obtain a regional distribution diagram of the heavy metal elements. According to the invention, byformulating proper individual evaluation indexes and the comprehensive evaluation indexes of the contents of the heavy metals and drawing the geostatistical distribution diagrams according to the individual evaluation indexes and the comprehensive evaluation indexes, the levels of the heavy metals in tobacco in each region can be reflected intuitively and truly, and raw material purchasing staff and tobacco group formula personnel can conveniently inquire and judge.

Description

technical field [0001] The invention relates to the technical field of tobacco detection, in particular to a visualization method for regional distribution of heavy metal content in tobacco leaves. Background technique [0002] The development of modern industry and agriculture has caused the soil and atmospheric environment to be polluted by different types of heavy metals, and the degree of heavy metal pollution varies according to the region. [0003] Tobacco is a plant that is easy to absorb and enrich heavy metals. For tobacco itself, heavy metal pollution affects important physiological and biochemical indicators such as photosynthetic characteristics, enzyme activity, and protein and amino acid content of tobacco. When the concentration of heavy metals is too high, it is more likely to cause tobacco quality. with a severe drop in production. [0004] For the human body, heavy metals enter the human body through the mainstream smoke of cigarettes in the form of aeroso...

AI Technical Summary

Problems solved by technology

In the prior art, although there are literatures mentioning the recommended limit values ​​of certain heavy metals in tobacco leaves, there is no literature on the evaluation method of heavy metal content in tobacco leaves. This is based on the large number of samples of tobacco leaf planting samples in the country, and all of them are obtained for comparison. Difficult. On the other hand, even if all the samples can be collected, the detection task is very heavy and the data statistics are extremely complicated.

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