Bismuthiol II as an Analytical Reagent

SOLVENT EXTRACTION AND SPECTROPHOTOMETERIC DETERMINATION OF Cu(II) BY USING ACETOPHENONE 2’,5’- DIHYDROXY SEMICARBAZONE AS AN ANALYTICAL REAGENT

A spectrophotometric method has been developed for the determination of Cu(II) using Acetophenone 2’,5’dihydroxy, semicarbazone as an extractive reagent .The reagent forms a colored complex which has been quantitatively extracted into n-Butanol at pH 5.6. The method obeys Beer’s law over a range of 1 to 10 ppm. The molar absorptivity is 2564.1 L molcm and Sandell’s sensitivity is 0.02484 μg cm ...

2, 4-Dihydroxy-5-Bromo [2’Methyl] Propiophenone Thiosemicarbazone [DHBMPT] as an Analytical Reagent: Studies on Pd (II) Chelate

2, 4-Dihydroxy-5-Bromo-[2’methyl]-Propiophenone thiosemicarbazone [DHBMPT] has been used for the spectrophotometric determination of Pd(II) at pH = 2.5. Job’s method of continuous variation and Yoe and Jones Mole ratio method show metal: ligand ratio in the complex to be 1:1. The molar absorptivity of complex at 390 nm was found to be 1.457 x10 lit.mol.cm and Sandell’s sensitivity was found to ...

Spectrophotometric Determination of Drugs Using Iodine As Analytical Reagent

Six drugs viz., Astemizole, Cisapride, Domperidone, Pantoprazole, Rabeprazole and Trazadone were tested for the formation of charge transfer complexes with Iodine. Each of these drugs turned the violet coloured i.e iodine , in CH2Cl2, to brown and exhibited a new band at 366nm in addition to the original band of iodine at 510nm due to anion of the reagent whose intensity increased with increase...

Phenylbiguanide-p-Sulfonic Acid as an Analytical Reagent for the Colorimetric Determination of Nickel

2 - Hydroxy - 4 - n - propoxy - 5 - bromoacetophenone oxime ( HnPBAO ) as analytical reagent for the gravimetric determination of Pd ( II )

2-Hydroxy-4-n-5-bromoacetophenone oxime (HnPBAO) was developed as a new analytical reagent for the gravimetric determination of divalent palladium ion. In the pH range of 2.0 to 5.0, the reagent gave a light brown precipitate with Pd(II). Job’s method and mole ratio method revealed that the stoichiometry of the complex is 1:2 (metal : ligand). Beer’s law is obeyed upto 37.25 ppm of Pd(II) at 45...