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GLC determination of butylated hydroxyanisole in human plasma and urine.

A highly sensitive and specific GLC method was developed for the analysis of butylated hydroxyanisole, a commonly used antioxidant. Concentrations below 100 ng/ml could be detected in human plasma and urine. Preliminary pharmacokinetic studies demonstrated that, upon administration of 100 mg po, butylated hydroxyanisole was quickly absorbed and removed from the plasma with a high degree of intersubject variability.