Testing method for harmful element arsenic of cigarette paper

A technology of harmful elements and determination methods, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve the problems of human hazard, human hazard, harm, etc., and achieve the effect of preventing harm, protecting health, and ensuring safety

Inactive Publication Date: 2007-05-16
CHECKOUT & QUARANTINE TECH CENT YUNNAN ENTRY &EXIT CHECKOUT & QUARANTINE BUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Smoking is harmful to the human body. What are the harmful substances and where do they come from? First, the toxic and harmful substances contained in tobacco itself enter the human body after burning, causing harm to the smoker's body
Second, the toxic and harmful substances in cigarette accessories can also cause harm to the human body. For example, the harmful heavy metal element arsenic in cigarette paper will cause harm to the human body
At present, there is no report on the determination of the harmful element arsenic in cigarette paper

Method used

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  • Testing method for harmful element arsenic of cigarette paper
  • Testing method for harmful element arsenic of cigarette paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Use the instrument:

[0034] Double-channel atomic fluorescence photometer, model: AFS-230E, arsenic hollow cathode lamp.

[0035] Temperature controlled electric hot plate.

[0036] Table 1 Working conditions of atomic fluorescence photometer

[0037] Instrument conditions

[0038] Carrier gas flow rate (mL / min)

[0039] 2 using reagents

[0040] The laboratory water is twice distilled water, and the reagents are of superior grade;

[0041] Mixed acid of nitric acid and perchloric acid (4:1): Measure 400mL of concentrated nitric acid, add 100mL of concentrated perchloric acid, and mix well;

[0042] Potassium borate solution (20g / L): 2g of potassium borohydride, dissolved in 100mL of potassium hydroxide solution (5g / L), shake well, ready for immediate use;

[0043] Hydrochloric acid (3mol / L): Slowly pour 270mL of hydrochloric acid into an appropriate amount of water, cool, and dilute to 1000mL;

[0044] Mixed solutio...

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PUM

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Abstract

This invention relates to one analysis and test method for micro element, which comprises the following steps: a, cutting and mixing cigarette paper sample into anti-acid container; b, adding 10-20ml aqua fortis, Fraude's reagent mixture per gram; c, heating on board with temperature of 150 to 180 degrees to generate brown gas for cooling; d, transferring to above heating board near drying with 0.5-1ml left; e, cooling the above liquid and solving alcaine for 3mol / L then adding 10ml ascorbic acid and sulfourea and then adding alcaine of 3mol / L to 25ml; f, using atom fluorescence meter to draw correction curve; g, using step e to test fluorescence intensity to get the concentration to compute arsenic content.

Description

technical field [0001] The invention relates to a method for analyzing and measuring trace elements. Background technique [0002] Smoking is harmful to the human body. What are the harmful substances and where do they come from? First, the toxic and harmful substances contained in tobacco itself enter the human body after burning, causing harm to the smoker's body. Second, the toxic and harmful substances in cigarette accessories can also cause harm to the human body. For example, the harmful heavy metal element arsenic in cigarette paper will cause harm to the human body. Cigarette paper is used for cigarettes and wraps the shredded tobacco. When smoking, the cigarette paper burns along with the shredded tobacco, and the combustion gas is inhaled into the body, and the harmful substances in the cigarette paper also enter the human body. Therefore, the control of toxic and harmful substances in cigarette accessories is also very important. [0003] The national standard ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/71G01N21/62
Inventor 梁文君戚晓燕杨玲春保亚红曹红刘永嘉旦有明吕涛
Owner CHECKOUT & QUARANTINE TECH CENT YUNNAN ENTRY &EXIT CHECKOUT & QUARANTINE BUR
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