摘要 |
Bilirubin, particularly as contained in body fluids, is determined with test strips comprising an absorbent WHEREIN X<-> is a stabilizing anion; R1 and R2, which may be the same or different, are halogen or lower alkyl or alkoxy and R3 and R4, which may be the same or different, are hydrogen, halogen, nitro, or lower alkyl or alkoxy; THE AROMATIC RING IN FORMULA (I) containing either (a) 1 to 3 halogen atoms or (b) one nitro group, but not both together; and an amount of an acid sufficient for a coupling reaction between bilirubin and said diazonium salt. |