2055-26-7Relevant articles and documents
Determination of Nicotine N-Oxide by Gas Chromatography following Thermal Conversion to 2-Methyl-6-(3-pyridyl)tetrahydro-1,2-oxazine
Jacob, Peyton,Benowitz, Neal L.,Yu, Lisa,Shulgin, Alexander T.
, p. 2218 - 2221 (1986)
Nicotine N-oxide is extracted from urine by use of silica gel columns and eluted with methanolic ammonia.The eluate is evaporated and then heated at 150-160 deg C in anisole, which results in conversion to the ring-expansion product 2-methyl-6-(3-pyridyl)tetrahydro-1,2-oxazine.The oxazine derivative is readily extracted from aqueous solution with organic solvents and has good chromatographic properties.A method for determination of nicotine N-oxide in smoker's urine, using 5-methylnicotine N-oxide as an internal standard, is described.