The automated fluorometric determination of serum magnesium. II. Procedure using 8-hydroxyquinoline-5-sulfonic acid.

Abstract

Two automated flow systems are presented for the fluorometric determination of serum magnesium. Each procedure is based on measurement of the fluorescence of magnesium 8-hydroxyquinoline-5-sulfonate. One method treats a serum dialysate; the other reacts serum directly with the aqueous reagent. Calcium interference is eliminated by sequestration.