MnO2 efficiently removes indigo carmine dyes from polluted water

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Use of ceric ammonium sulphate and two dyes, methyl orange and indigo carmine, in the determination of lansoprazole in pharmaceuticals.

Two spectrophotometric methods are proposed for the assay of lansoprazole (LPZ) in bulk drug and in dosage forms using ceric ammonium sulphate (CAS) and two dyes, methyl orange and indigo carmine, as reagents. The methods involve addition of a known excess of CAS to LPZ in acid medium, followed by determination of residual CAS by reacting with a fixed amount of either methyl orange, measuring t...

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ژورنال

عنوان ژورنال: Heliyon

سال: 2018

ISSN: 2405-8440

DOI: 10.1016/j.heliyon.2018.e00897