发明名称 |
Method of determining the nicotine content of tobacco |
摘要 |
A method of determining on a discrete analyzer the nicotine content of tobacco or a smoking-related product by preparing an aqueous extract of a sample of tobacco or smoking-related product, pre-reacting the extract with an acidic buffered solution of pH not more than 6 for at least two minutes, reacting the pre-reacted extract in the discrete analyzer with aniline and cyanogen bromide, measuring the intensity of yellow coloration generated, and comparing said intensity with that produced by a nicotine standard to determine the nicotine content of said sample.
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申请公布号 |
US4783418(A) |
申请公布日期 |
1988.11.08 |
申请号 |
US19870002931 |
申请日期 |
1987.01.13 |
申请人 |
IMPERIAL TOBACCO LIMITED |
发明人 |
LONG, TERENCE M.;JOHNSON, JOSEPH C.;NAYLOR, MAURICE |
分类号 |
G01N31/00;G01N31/22;(IPC1-7):G01N33/00 |
主分类号 |
G01N31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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