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A method for the separation and determination of arsenic in different valence states in mainstream cigarette smoke

A technology of cigarette mainstream smoke and measurement method, which is applied in the field of chemical analysis and detection, and can solve the problems of lack of accuracy and reliability

Active Publication Date: 2017-01-04
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 elements in different valence states in the mainstream smoke of cigarettes, which is used to solve the lack of accurate, reliable, and easy-to-operate separation of the main stream of cigarettes in the prior art. Problems in the method of analyzing arsenic elements in different valence states in flue gas

Method used

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  • A method for the separation and determination of arsenic in different valence states in mainstream cigarette smoke
  • A method for the separation and determination of arsenic in different valence states in mainstream cigarette smoke
  • A method for the separation and determination of arsenic in different valence states in mainstream cigarette smoke

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Embodiment 1

[0087] 1 Reagents and instruments

[0088] 1.1 Reagents

[0089] AB-8 macroporous adsorption resin (particle size range 0.3~1.25mm≥95%, Tianjin Guangfu Fine Chemical Research Institute); 717 strong basic anion exchange resin (500g / bag, Xi’an Lanxiao Technology Co., Ltd.); trivalent arsenic , pentavalent arsenic standard solution (1.0mg / L, National Center for Standard Materials); germanium 72 (100.0mg / L, U.S. Agilent Technology Co., Ltd.); Sodium hydroxide (analytical pure, German Merck company); 65% nitric acid (excellent grade pure, German Merck company)

[0090] 1.2 Instruments

[0091] RM200A rotary smoking machine (Borgwaldt, Germany); Cambridge filter (diameter 92mm, Borgwaldt, Germany); filter membrane (0.45μm, Shanghai Anpu Technology Co., Ltd.); SW12H ultrasonic cleaner (SONO SWISS, Switzerland); Milli- Q Ultrapure Water Instrument (Millipore, USA); 7700X Octopole Collision / Reaction Cell-Inductively Coupled Plasma Mass Spectrometer (Agilent Technology Co., Ltd., USA...

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Abstract

The invention provides a method for separating and measuring arsenic elements in different valence states in mainstream smoke of cigarettes, which uses AB-8 resin and 717 anion exchange resin to separate, and then uses inductively coupled plasma mass spectrometry to measure arsenic in different valence states in mainstream smoke of cigarettes element content. Among them, the arsenic elements in different valence states are trivalent arsenic and pentavalent arsenic. The method for separating and measuring arsenic elements in different valence states in mainstream smoke of cigarettes according to the present invention has good reproducibility and recovery rate, and is beneficial for relevant technicians in the tobacco industry to effectively measure the content of arsenic elements in different valence states in mainstream smoke of cigarettes. It provides strong technical support for the tobacco industry to comprehensively and objectively evaluate the harmfulness of arsenic in mainstream cigarette smoke.

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 arsenic elements in different valence states in mainstream smoke of cigarettes. Background technique [0002] As a heavy metal element, arsenic has received extensive attention and research in recent years because of its great harm to humans and the environment. Arsenic in cigarette smoke is one source of chromium in the environment and one of the harmful components listed in the Hoffmann list within the tobacco industry. When smoking cigarettes, arsenic will be inhaled into the bronchi, which will cause 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 , AsO 3 3- , AsO 4 3- ) is highly toxic, organic arsenic is less toxic, and trivalent arsenic in inorganic arsenic is more tox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/64G01N1/34
Inventor 陆怡峰姚鹤鸣顾文博谢雯燕李永霞张珲姿张怡春刘鸿周志雄史佳沁
Owner SHANGHAI TOBACCO GRP CO LTD
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