Method for detecting chromium, nickel, arsenic, selenium, cadmium and lead in cigarette butt
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A method of determination and a technology of cigarette butts, which are applied to the determination of trace elements in cigarette butts and the field of physical and chemical inspection of cigarettes, and can solve problems such as the determination of heavy metals in cigarette butts
Inactive Publication Date: 2014-08-20
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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Research on the transfer rate of elements in cigarettes [Journal of Yunnan Agricultural University, 2011, 26 (5): 656-661, 667] reported some heavy metals in cigarette butts and sidestream smoke, but this method is through The total amount of elements involved in burning cigarettes? The content of elements in soot? The content of elements in mainstream smoke is achieved, and the content of heavy metals in cigarette butts has not been determined separately
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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); HNO 3 (Superior pure, 65%, mass fraction, Merck, Germany); HF (Superior pure, 40%, mass fraction, Merck, Germany); HCL (Superior pure, 37%, mass fraction, Merck, Germany); H 2 O 2 (Excellent grade pure, 30%, mass fraction, Merck, 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 Apparatus (CEM, USA); Milli-Q50 Ultrapure Water Analyzer ( American Millipore Company); temperature-controlled electric heater (BHW-09C, Shanghai Broadcom Company), dust-proof exhaust hood; PET volumetric flask 50 mL, PET volumetric flask 250 mL, PET volumetric flask 1000 mL.
[0081] ...
example 2
[0088] The specific steps are as described in Example 1, and the contents of chromium, nickel, arsenic, selenium, cadmium and lead in the cigarette butts of cigarette sample B (Belle cigarettes) are measured and shown in Table 9.
[0089] Table 9 Test results of chromium, nickel, arsenic, selenium, cadmium and lead in cigarette butts of cigarette sample B
[0090] element Cr Ni As Se Cd Pb Content (ng / cig) 76.9 112.6 19.1 3.3 191.1 221.8
example 3
[0092] The specific steps are as described in Example 1, and the contents of chromium, nickel, arsenic, selenium, cadmium, and lead in the cigarette butts of cigarette sample C (oriental tobacco) are measured in Table 10.
[0093] Table 10 Test results of chromium, nickel, arsenic, selenium, cadmium and lead content in cigarette butts of cigarette sample C
[0094] element Cr Ni As Se Cd Pb Content (ng / cig) 125.6 147.7 28.6 8.2 110.4 120.9
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Abstract
The invention relates to a method for detecting the contents of chromium, nickel, arsenic, selenium, cadmium and lead in a cigarette butt, which is characterized in that a cigarette butt collecting method is specified; a cigarette butt sample is decomposed by using micro-wave; and the contents of chromium, nickel, arsenic, selenium, cadmium and lead in the cigarette butt are detected through the inductively coupled plasma mass spectrometry. According to the invention, the disadvantages of the cigarette butt collecting method in the existing detection technology are overcome; the cigarette butt collecting method is perfect; the cigarette butt sample is decomposed by using micro-wave, therefore, the use amount of acid and the decomposition time are effectively reduced; the method disclosed by the invention is good in decomposing effect, little in element loss and simple to operate; in a mixed acid decomposing system, the cigarette butt sample is thoroughly decomposed; decomposing solution is clear and transparent and free from precipitation; parameters of the inductively coupled plasma mass spectrometry are adopted; the matrix effect is effectively reduced; and the method disclosed by the invention is high in sensitivity, good in repeatability, high in recovery rate and accurate in result.
Description
[0001] technical field [0002] 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 butts, specifically a method for collecting and processing cigarette butts and using an inductively coupled plasma mass spectrometer to measure chromium, nickel, arsenic, Methods for selenium, cadmium and lead. [0003] Background technique [0004] The butt is the unburned part of a cigarette after it is smoked. During cigarette smoking, the cigarette butt has a filtering effect on the mainstream smoke, and a large amount of toxic and harmful substances will remain in the cigarette butt. The toxicity of cigarette butts and the impact and degradation of filters on the environment have also attracted the attention of foreign organizations and institutions. Heavy metal elements such as chromium, nickel, arsenic, selenium, cadmium, and lead are highly regarded harmful su...
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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G01N1/28G01N27/626
Inventor 陈再根李雪朱风鹏姜兴益罗彦波庞永强胡清源王颖李中皓邢军
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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