Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for detecting chromium, nickel, arsenic, selenium, cadmium and lead in cigarette side-stream smoke

A sidestream smoke and detection method technology, which is applied in the direction of measuring devices, preparation of test samples, and material analysis through electromagnetic means, can solve the problem of high background of elements in the collection filter, which affects the accuracy of measurement and affects the detection efficiency And other issues

Inactive Publication Date: 2014-08-06
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
View PDF2 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on directly collecting and detecting heavy metals in sidestream smoke. The only existing method is Health Canada No. 201, which collects sidestream smoke particulate matter through a glass fiber filter and determines the target element by atomic absorption. The background of the filter element is high, which seriously affects the accuracy of the measurement. The atomic absorption can only detect one element at a time, which seriously affects the detection efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting chromium, nickel, arsenic, selenium, cadmium and lead in cigarette side-stream smoke
  • Method for detecting chromium, nickel, arsenic, selenium, cadmium and lead in cigarette side-stream smoke
  • Method for detecting chromium, nickel, arsenic, selenium, cadmium and lead in cigarette side-stream smoke

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0101] 1. Reagents and instruments:

[0102] Cr, Ni, As, Se, Cd, Pb mixed standard solution (10mg / L, Agilent company); In, Bi mixed internal standard solution (1mg / L, Agilent company); Ce, Co, Li, Tl, Y Tuning solution (10μg / L, Agilent company in the United States); methanol (excellent grade pure, Merck company in Germany); HNO 3 (Excellent grade pure, 65%, mass score, Merck, Germany); H 2 O 2 (Excellent grade pure, 30%, mass fraction, Merck, Germany); ultrapure water (resistivity ≥ 18.2 MΩ·cm).

[0103] LM5 side stream 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), dust-proof exhaust hood; acid steam filter purifier; PET volumetric flask 30 mL, PET volumetric flask 50mL, PET volumetric flask 1000mL, PET 100mL sample ...

example 2

[0111] The specific steps are as described in Example 1. For the cigarette sample B (Belle Cigarette), the content of chromium, nickel, arsenic, selenium, cadmium, and lead in the sidestream smoke of the cigarette is shown in Table 12.

[0112] Table 12 Test results of chromium, nickel, arsenic, selenium, cadmium, and lead in sidestream smoke of cigarette sample B

[0113] Element (ng / cig)Cr Ni As Se Cd Pb Lateral flow granular phase1.84.77.62.01096.212.9 Sidestream gas phase1.64.81.82.11.22.7 Side stream3.49.59.44.11097.415.6

example 3

[0115] The specific steps are as described in Example 1. The contents of chromium, nickel, arsenic, selenium, cadmium, and lead in the sidestream smoke of cigarette sample C (flavored tobacco) are shown in Table 13.

[0116] Table 13 Test results of chromium, nickel, arsenic, selenium, cadmium, and lead in sidestream smoke of cigarette sample C

[0117] Element (ng / cig)Cr Ni As Se Cd Pb Lateral flow granular phase6.02.58.65.8526.76.9 Sidestream gas phase5.449.11.62.01.58.8 Side stream11.451.610.27.8528.215.7

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for detecting chromium, nickel, arsenic, selenium, cadmium and lead in cigarette side-stream smoke. The method is characterized in that a fishtail cover is connected with a quartz fiber filter disc in series to collect particulate matters in the cigarette side-stream smoke, a triple-tandem nitrite acid solution is used for collecting gas phase matters in the side-stream smoke, a microwave digestion method is used for digesting samples, and the contents of chromium, nickel, arsenic, selenium, cadmium and lead in the particulate matter and gas phase matter samples are detected through ICP-MS (Inductively Coupled Plasma Mass Spectrometry). The method overcomes the defects of sample collecting and processing methods and detecting techniques in the prior art and fills the blank of domestic detecting techniques for heavy metal in the side-stream smoke. The fishtail cover is connected with the purified quartz fiber filter disc in series to collect the particulate matters in the side-stream smoke, so that the background interference is effectively reduced. A three-stage absorption bottle collects the gas phase matters in the side-stream smoke, so that the gas phase matters can be completely collected. The microwave digestion method treats the samples, so that the digestion effect is good, and the element loss is few. The ICP-MS is adopted for determination, so that the method is fast and accurate, high in sensitivity, good in repeatability and high in recovery rate.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical testing of cigarettes, and mainly relates to the field of determination of trace elements in cigarette sidestream smoke, specifically a method for collecting cigarette sidestream smoke and using an inductively coupled plasma mass spectrometer to measure cigarette sidestream smoke Chromium, nickel, arsenic, selenium, cadmium, lead in air. Background technique [0002] Harmful substances in tobacco and smoke have always been a hot spot of concern. Heavy metal elements such as chromium, nickel, arsenic, selenium, cadmium, and lead have been listed as important components of harmful substances in tobacco and smoke since the 1990s. important control object. At present, the heavy metal elements in tobacco and cigarette mainstream smoke have been collected by various methods and determined by various detection methods. In recent years, people have shifted their focus from mainstream cigar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N27/62G01N1/28G01N27/626
Inventor 李雪陈再根朱风鹏庞永强姜兴益罗彦波胡清源范子彦张洪非侯宏卫
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com