Reagent Arsenazo III

Leary NO, Pembroke A, Duggan PF. Single stable reagent (Arsenazo III) for optically robust measurement of calcium in serum and plasma. Clin Chem 1992 38 904-8. 

Fig. 3 Separation of lanthanides using gradient elution. Experimental conditions column, reverse phase Cig mobile phase, camphor-10-sulfonic acid (0.05 M) a-HIBA varied from 0.07 to 0.3 M, pH 3.8 flow rate 2 ml/min. Postcolunm reagent Arsenazo III (l.SxlO Af) flow rate 1.5 ml/min detection 655 nm.

Distribution ratios (chloroform-water) have also been reported for curium complexes with 8-hydroxyquinoline (oxineX cupferron, and JV-benzoyl-phenylhydroxylamine (NBPHA) [136]. Only 1 3 complexes with Cm(iii) and Am(iii) were reported, and extraction into the organic phase appears to be very high at pH values above 5. Solution interaction of Cm(iii) with bis(salicylidene)ethylenediimine (SALEN) and derivatives has also been studied [137], With the reagent arsenazo(iii), both Cm(iii) and Am(iii) form 1 1 and 1 2 complexes [138]. 

---