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Method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry

A technology of reconstituted tobacco leaves and inductive coupling, which is used in measurement devices, preparation of test samples, material analysis by electromagnetic means, etc., to achieve the effects of good linearity, short analysis time, and satisfactory analysis and testing.

Inactive Publication Date: 2014-07-09
CHINA TOBACCO GUANGDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

75 As, 11 B. 138 Ba, 9 Be, 111 Cd, 59 Co. 52 Cr, 63 Cu, 202 Hg, 60 Ni, 208 Pb, 78 Se, 118 Sn, 205 Tl, 238 U 51 V, 66 Zn is an important 17 trace elements in reconstituted tobacco leaves, but there are few reports on the simultaneous determination and analysis of multiple elements in reconstituted tobacco leaves

Method used

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  • Method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry
  • Method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry
  • Method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry

Examples

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Embodiment 1

[0037] In this example, Agilent 7700x inductively coupled plasma mass spectrometer (Agilent, USA); MARS 6 microwave digestion instrument (CEM, USA); Milli-Q Integral ultrapure water system (Millipore, USA); electronic balance (Germany Sartorius Corporation). However, the present invention is not limited thereto, and those skilled in the art may also select instruments from other manufacturers or models with reference to the detection conditions of the present invention.

[0038] HNO 3 (65%, superior grade, Merck, Germany); H 2 o 2(30%, superior grade, Merck, Germany); As, Ba, Be, Cd, Co, Cr, Cu, Ni, Pb, Se, Tl, U, V and Zn mixed standard solution (10 mg / L, USA Agilent Corporation); Hg single-element standard solution (10 mg / L, Agilent Corporation, USA); B, Sn single-element standard solution (1000 mg / L, National Standard Materials Research Center); Au single-element standard solution (10 mg / L , National Standard Materials Research Center); 72 Ge, 115 In, 209 Bi internal...

Embodiment 2

[0079] Embodiment 2 sample analysis

[0080] According to the method established by the present invention, 5 kinds of reconstituted tobacco samples randomly sampled have been analyzed and measured, and the content results of each element in the sample are shown in Table 6:

[0081] Table 6 Measurement results of actual samples

[0082] Analyte 1# 2# 3# 4# 5# 75 As 0.24 0.35 0.23 0.20 0.16 11 B 19.11 23.18 35.67 20.47 30.14 137 Ba 20.08 32.19 18.64 27.51 11.14 9 be not detected not detected 0.02 not detected 0.01 111 Cd 1.35 1.67 2.34 1.73 1.25 59 co 0.21 0.13 0.19 0.10 0.24 52 Cr 0.98 1.37 1.66 1.08 0.75 63 Cu 4.32 3.26 3.03 5.19 4.05 202 Hg not detected not detected not detected 0.01 not detected 60 Ni 1.39 0.88 1.07 1.33 0.98 208 Pb 2.25 1.64 1.50 1.59 2.34 82 Se 0.03 0.11 0.17 0.08 0.13 118 sn 0.20 0.13 0.09 0.21 0...

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Abstract

The invention discloses a method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry. According to the invention, microwave digestion and inductively coupled plasma mass spectrometry are combined together to measure 17 trace elements in reconstituted tobacco; a reconstituted tobacco sample is subjected to microwave digestion, and then ICP-MS measurement is quantitatively carried out through combination of a standard mode, collision / reaction cell technology and an internal standard method. Measurement results show that: 17 target elements have good linearity, a correlation coefficient r is no less than 0.9995, a detection limit is 0.001 to 0.065 mu g / L, an added standard recovery rate is 79.31 to 123.07%, and relative standard deviation is 1.15 to 6.38%. The method provided by the invention has the advantages of simple operation, short analysis time, stability, accuracy, etc. and can be used for analysis and test of large-batch reconstituted tobacco samples in the tobacco industry.

Description

technical field [0001] The invention relates to the technical field of elemental analysis of reconstituted tobacco leaves, and more specifically, relates to a method for simultaneously determining 17 trace elements in reconstituted tobacco leaves by inductively coupled plasma mass spectrometry. Background technique [0002] At present, the analysis and detection of heavy metals in cigarette raw materials and tobacco accessories has become one of the research focuses of the tobacco industry. Seven elements including arsenic (As), lead (Pb), cadmium (Cd), chromium (Cr), nickel (Ni), mercury (Hg), and selenium (Se) have become components of the Health Canada testing list. As, Pb, Cd, Cr, Ni, Be, Co, 210 A total of eight elements of Po became the components of the Hoffmann detection list. [0003] In terms of simultaneous determination of multiple elements in tobacco, ICP-MS has the advantages of sensitivity, rapidity, and strong anti-interference ability. In particular, its c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G01N1/28G01N1/38G01N1/44
Inventor 古君平刘殷王华胡静
Owner CHINA TOBACCO GUANGDONG IND
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