Method for separation and determination of chromium 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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  • Summary
  • Abstract
  • Description
  • Claims
  • 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 different forms of chromium in tobacco and tobacco

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0072] 1 Reagents and instruments

[0073] 1.1 Reagents

[0074] AB-8 macroporous adsorption resin (particle size range 0.3~1.25mm≥95%, Tianjin Guangfu Fine Chemical Research Institute); chromium standard solution (10.0mg / L, American Agilent Technology Co., Ltd.); scandium 45 (100.0mg / L, U.S. Agilent Technology Co., Ltd.); Sodium hydroxide (analytical pure, German Merck company); Ethanol (analytical pure, German Merck company); 65% nitric acid (excellent grade pure, German Merck company)

[0075] 1.2 Instruments

[0076] Filter membrane (0.45μm, Shanghai Anpu Technology Co., Ltd.); SW12H ultrasonic cleaner (SONO SWISS, Switzerland); Milli-Q ultrapure water instrument (Millipore, USA); ZM200 ultracentrifugal grinder (Retsch, Germany); 7700X Octopole Collision / Reaction Cell-Inductively Coupled Plasma Mass Spectrometer (Agilent Technologies, Inc., USA)

[0077] 2. Measurement method

[0078] 2.1 Sample pretreatment

[0079] Tobacco powder samples were prepared according to t...

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Abstract

The invention provides a method for separation and determination of chromium 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 chromium elements in different forms in the tobacco and tobacco products, wherein the chromium elements in different forms include inorganic chromium and organic chromium. The method for separation and determination of the chromium 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 chromium 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 chromium 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 in particular relates to a method for separating and measuring chromium elements in different forms in tobacco and tobacco products. Background technique [0002] As a heavy metal element, chromium has been widely concerned and studied in recent years because of its great harm to human beings and the environment. . Chromium in smoke is one of the sources of chromium in the environment and is one of the harmful components listed in the Hoffmann list in the tobacco industry. When smoking cigarettes, chromium can not only be absorbed by the respiratory tract, but also can be absorbed by the skin in a small amount, thus causing harm to the human respiratory system, skin, kidneys and other organs. It can be seen from toxicology that different forms of chromium have different toxicity. Metal chromium has almost no toxic effect on the human body. Inorganic chromium (hexaval...

Claims

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Application Information

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IPC IPC(8): G01N27/62G01N27/626
Inventor 刘鸿姚鹤鸣陆怡峰李永霞张珲姿
Owner SHANGHAI TOBACCO GRP CO LTD
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