Spectrophotometric determination of cobalt (II) with mordant blue 9-application to vitamin B12 (injections and powder)
By: Sulayman, Sad Allah T.; Hammudi, Tamadur Abbas. Rafidain Journal of Science. Vol. 27, no. 3 (2018), pp.93-102, 10 p.
Subjects: Chemical reagents; Cobalt; Vitamin B12