New method for detection and spectrophotometric determination of quinones

Ultraviolet and light absorption spectrometry

“…Vitamin B12 and 7-aminobutyric acid interfered while vitamins Bj, B2, B6, folic acid, and nicotinamide did not. Quinones such as p-lbenzoquinone, tetrachloro-p-benzoquinone, and 1,4naphthoquinone have been determined by reaction with 3phenylthiazolidine-2,4-dione in ammoniacal solution (567).…”