Chemistry: analytical and immunological testing – Heterocyclic carbon compound – Hetero-n
Patent
1987-01-13
1988-11-08
Marcus, Michael S.
Chemistry: analytical and immunological testing
Heterocyclic carbon compound
Hetero-n
131297, G01N 3300
Patent
active
047834188
ABSTRACT:
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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Johnson Joseph C.
Long Terence M.
Naylor Maurice
Imperial Tobacco Limited
Marcus Michael S.
McMahon Timothy M.
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