Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Najih H. Shekho"'
Autor:
Najih H. Shekho, Hind A. Mahmoud
Publikováno v:
Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 29, Iss 2 (2017)
A rapid, simple and sensitive spectrophotometric method for the determination of trace amounts of chromium (VI) was studied. The method is based on the reaction of chromium (VI) with promethazine forming a red colored species by chromium in hydrochlo
Externí odkaz:
https://doaj.org/article/e7c9349b749c49deb018d68bc2b5d761
Publikováno v:
3RD INTERNATIONAL CONFERENCE ON ENERGY AND POWER, ICEP2021.
Publikováno v:
Rafidain Journal of Science. 24:60-73
A simple, rapid, accurate and precise spectrophotometric method is proposed for the determination of thiamine hydrochloride (Vitamin B1) in both pure form and in its pharmaceutical formulations. The method is based on the oxidation-reduction reaction
Autor:
Najih H. Shekho, Enas S. Thunoon
Publikováno v:
Rafidain Journal of Science. 24:39-52
Autor:
Thura Z. Al-Sarraj, Najih H. Shekho
Publikováno v:
Rafidain Journal of Science. 24:70-83
Publikováno v:
Baghdad Science Journal (2018)
A simple and rapid spectrophotometric method for the determination of sulphite SO3-2 is described. The method is based on the rapid reduction of known amount of chromate CrO4-2 in the presence of sulphite in acidic medium of 2N H2SO4. The amount of e
Autor:
Najih H. Shekho, Hind A. Mahmoud
Publikováno v:
Baghdad Science Journal. 13:0556
A rapid, simple and sensitive spectrophotometric method for the determination of trace amounts of chromium is studied. The method is based on the interaction of chromium with indigo carmine dye in acidic medium and the presence of oxalates as a catal