Analytical uses of charge transfer complexes—Determination of piperidines

Abstract A simple spectrophotometric determination of piperidine and some methyl-substituted piperidines has been proposed. The method is based on the blue-colored charge transfer complex formation of the nitrogen bases with tetrachloro-1,2-benzoquinone in chloroform. The method is rapid and sensitive to 5.5 μg ml −1 piperidine and has the applicability for the assay of piperidine hydrochloride.