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A detection method for chromium, nickel, arsenic, selenium, cadmium and lead in cigarette ash

A detection method and soot technology, which can be applied in measurement devices, preparation of test samples, material analysis by electromagnetic means, etc., can solve the problems of high analysis cost and small matrix effect in neutron activation analysis.

Active Publication Date: 2017-03-08
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neutron activation analysis has the advantages of small matrix effect, high sensitivity, good accuracy, multi-element and non-destructive analysis, and is suitable for the analysis of various samples such as liquid and solid, but it needs to use complex large-scale facilities (such as nuclear reactors) , the analysis cost is high, and it is not a very common analysis method

Method used

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  • A detection method for chromium, nickel, arsenic, selenium, cadmium and lead in cigarette ash
  • A detection method for chromium, nickel, arsenic, selenium, cadmium and lead in cigarette ash
  • A detection method for chromium, nickel, arsenic, selenium, cadmium and lead in cigarette ash

Examples

Experimental program
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Effect test

example 1

[0078] 1. Reagents and instruments:

[0079] Cr, Ni, As, Se, Cd, Pb mixed standard solution (10mg / L, Agilent, USA); In, Bi mixed internal standard solution (1mg / L, Agilent, USA); Ce, Co, Li, Tl, Y Tuning solution (10μg / L, Agilent, USA); Methanol (excellent grade, Merck, Germany); HNO 3 (excellent grade pure, 65%, mass fraction, German Merck Company); HCL (excellent grade pure, 37%, mass fraction, German Merck Company); H 2 o 2 (excellent grade pure, 30%, mass fraction, Merck Company of Germany); ultrapure water (resistivity ≥ 18.2 MΩ·cm).

[0080] RM 20H turntable smoking machine (Borgwaldt-KC, Germany); Agilent 7500a inductively coupled plasma mass spectrometer (ICP-MS, Agilent, USA); CEM Mars6 microwave digestion instrument (CEM, USA); Milli-Q50 ultrapure water instrument ( American Millipore Company); temperature-controlled electric heater (BHW-09C, Shanghai Broadcom Company), dust-proof exhaust hood; PET volumetric flask 50mL, PET volumetric flask 250mL, PET volumetric...

example 2

[0088] The specific steps are as described in Example 1. The contents of chromium, nickel, arsenic, selenium, cadmium, and lead in the cigarette ash of cigarette sample B (white tobacco) are shown in Table 9.

[0089] Table 9 Detection results of chromium, nickel, arsenic, selenium, cadmium and lead in soot of cigarette sample B

[0090] element Cr Ni As Se Cd Pb Content (ng / cig) 434.4 821.3 135.3 26.0 769.4 1337.0

example 3

[0092] The specific steps are as described in Example 1. For cigarette sample C (oriental tobacco), the contents of chromium, nickel, arsenic, selenium, cadmium, and lead in cigarette ash were measured in Table 10.

[0093] Table 10 Detection results of chromium, nickel, arsenic, selenium, cadmium and lead in cigarette ash of sample C

[0094] element Cr Ni As Se Cd Pb Content (ng / cig) 656.4 869.2 181.1 42.5 310.9 661.9

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Abstract

A method for determining the content of chromium, nickel, arsenic, selenium, cadmium, and lead in cigarette ash, characterized in that the cigarette ash is collected by using an ash board, the ash sample is digested by microwave digestion, and the chromium in the ash is detected by inductively coupled plasma mass spectrometry , nickel, arsenic, selenium, cadmium, lead element content. The present invention adopts the ash plate to collect the soot, realizes the separate collection of the soot of each cigarette on the conventional smoking machine, and effectively avoids the loss of the soot during the smoking process and the cross-contamination of the soot of different cigarettes. Microwave digestion is used to process samples, which avoids the danger of using perchloric acid in the traditional electric heating plate digestion method, reduces the amount of acid used, improves the digestion capacity, has good digestion effect, less element loss, and is simple and easy to operate. The mixed acid system used is suitable for the treatment of cigarette ash samples, and the digestion is complete. The parameters of inductively coupled plasma mass spectrometry adopted in the method can effectively correct interference, and the method has high sensitivity, good repeatability, high recovery rate and accurate results.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical inspection of cigarettes, and mainly relates to the field of determination of trace elements in cigarette ash, in particular to a method for collecting and processing cigarette ash and using an inductively coupled plasma mass spectrometer to measure chromium, nickel and arsenic in cigarette ash , selenium, cadmium, lead method. Background technique [0002] Heavy metal elements such as chromium, nickel, arsenic, selenium, cadmium, and lead are harmful components in cigarettes and smoke. The Canadian government’s list of 46 harmful substances in 1998, my country’s FCTC implementation plan in 2006, and the 101 tobacco and smoke harmful components list issued by the FDA in 2011 will all contain heavy metals including chromium, nickel, arsenic, selenium, cadmium, and lead. Elements are listed as disclosures and regulated content. Heavy metal elements are inhaled by burning cigarettes, o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/62G01N1/44G01N27/626
Inventor 陈再根胡清源李雪庞永强朱风鹏姜兴益罗彦波刘楠侯宏卫邢军
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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