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Method for separation and determination of arsenic elements in different forms in tobacco and tobacco products

A technology for tobacco products and assay methods, applied in the field of chemical analysis and detection, can solve problems such as lack of accuracy and reliability

Inactive Publication Date: 2014-12-24
SHANGHAI TOBACCO GRP CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for the separation and determination of arsenic in different forms in tobacco and tobacco products, which is used to solve the lack of accurate, reliable and easy-to-operate separation of tobacco and tobacco in the prior art. Problems with methods of analysis of different forms of arsenic in products

Method used

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  • Method for separation and determination of arsenic elements in different forms in tobacco and tobacco products
  • Method for separation and determination of arsenic elements in different forms in tobacco and tobacco products
  • Method for separation and determination of arsenic elements in different forms in tobacco and tobacco products

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Experimental program
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Embodiment 1

[0072] 1 Reagents and instruments

[0073] 1.1 Reagent

[0074] AB-8 macroporous adsorption resin (particle size range 0.3~1.25mm≥95%, Tianjin Guangfu Fine Chemical Research Institute); arsenic standard solution (10.0mg / L, Agilent Technology Co., Ltd., USA); germanium 72 (100.0mg / L, American Agilent Technology Co., Ltd.); Sodium hydroxide (Analytical grade, Merck, Germany); Ethanol (Analytical grade, Merck, Germany); 65% nitric acid (Excellent grade, Merck, Germany)

[0075] 1.2 Instrument

[0076] Filter membrane (0.45μm, Shanghai Anpu Technology Co., Ltd.); SW12H ultrasonic cleaner (SONO SWISS, Switzerland); Milli-Q ultrapure water meter (Millipore, USA); ZM200 ultracentrifugal mill (Retsch, Germany); 7700X Octopole collision / reaction cell-inductively coupled plasma mass spectrometer (Agilent Technology Co., Ltd., USA)

[0077] 2. Measurement method

[0078] 2.1 Sample preparation

[0079] Prepare tobacco powder samples according to tobacco industry standard YC / T31-1996 "Preparation of...

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Abstract

The invention provides a method for separation and determination of arsenic elements in different forms in tobacco and tobacco products. AB-8 resin is adopted for separation, and the inductively coupled plasma mass spectrometry is adopted for determination of contents of the arsenic elements in different forms in the tobacco and tobacco products, wherein the arsenic elements in different forms include inorganic arsenic and organic arsenic. The method for separation and determination of the arsenic elements in different forms in tobacco and tobacco products is favorable in reproducibility and recovery rate, facilitates effective control on quantitative determination of contents of the arsenic elements in different forms in the tobacco and tobacco products by related technical personnel in the tobacco industry, and provides strong technical support for comprehensive and objective evaluation on harmfulness of the arsenic elements in tobacco and tobacco products in the tobacco industry.

Description

Technical field [0001] The invention belongs to the technical field of chemical analysis and detection, and specifically relates to a method for separating and determining arsenic in different forms in tobacco and tobacco products. Background technique [0002] As a heavy metal element, arsenic has received extensive attention and research in recent years due to its greater harm to humans and the environment. Arsenic in cigarette smoke is one of the sources of arsenic in the environment and one of the harmful ingredients listed in the Hoffmann list in the tobacco industry. When smoking cigarettes, arsenic will be inhaled into the bronchial tubes, causing harm to the lungs, liver, kidneys and other organs of the human body. According to toxicology, different forms of arsenic have different toxicity. Inorganic arsenic (As 2 O 3 , A s O 3 3- , AsO 4 3- ) Is more toxic, organic arsenic is less toxic, while trivalent arsenic in inorganic arsenic is more toxic than pentavalent arsenic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/64G01N1/34
Inventor 姚鹤鸣陆怡峰顾文博李永霞张珲姿张怡春刘鸿周志雄史佳沁黄雯
Owner SHANGHAI TOBACCO GRP CO LTD
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