2-Hydroxy-4-n-propoxy-5-bromoacetophenone oxime as an Analytical Reagent for Gravimetric Determination of V(V)
نویسندگان
چکیده
منابع مشابه
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...
متن کاملGravimetric Determination of Molybdenum(VI) Employing N-Hydroxy-N-p-Chlorophenyl-N' -(2-Methyl-4-Chlorophenyl) Benzamidine Hydrochloride
The use of N-hydroxy-N-p-chlorophenyl-N'-(2-methyl-4-chlorophenyl)benzamidine hydrochloride abbreviated as HCPMCPBH as a highly selective chelating agent for molybdenum has been investigated. The dioxomolybdenum complex Mo02(C20H1 5N20Ch)2 is quantitatively precipitated at pH = 2.8-6.6. As the complex can not be washed free of excess reagent, the dried complex is ignited at 500-550 °c to Mo03 f...
متن کاملSelective and Validated SpectrophotometricMethods for Determination of Acyclovir and Ganciclovirwith 2, 4 as Reagent
New, simple and sensitive spectrophotometric methods for the determination of acyclovir and ganciclovirhave been developed. The method is based on the oxidation of 2, 4-dinitrophenyl hydrazine (2, 4 DNP) and coupling of the oxidized product with acyclovir and ganciclovirto give intensely coloredchromogen. Acyclovir and ganciclovirshowed maximum absorbance at 414 nm and 450 nm with linearity was...
متن کامل2, 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 ...
متن کاملSOLVENT 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 ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: E-Journal of Chemistry
سال: 2009
ISSN: 0973-4945,2090-9810
DOI: 10.1155/2009/129832