UROBILINOGEN CONTRAST STANDARD ARTICLE, ITS MANUFACTURE AND UROBILINOGEN CONTRAST STANDARD SHAPE

摘要

A urobilinogen control standard composition, control standard device and a method for preparing such composition are disclosed. The composition comprises a substituted indole:nonionic detergent solution which is reactive with p-diethylaminobenzaldehyde and hydrochloric acid. The composition is produced by dissolving the substituted indole in a selected nonionic detergent and diluting the solution to a predetermined level. The device is a carrier matrix impregnated with a solution of a substituted indole and a nonionic detergent.