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Title: A selective and rapid microdetermination of molybdenum(VI) using 2', 4'-dihydroxyacetophenone benzoylhydrazone as a new reagent
Authors: Dass, Rameshwar
Mehta, J R
Issue Date: May-1994
Publisher: NISCAIR-CSIR, India
Abstract: A simpIe, rapid and selective spectrophotometric method for the microdetermination of molybdenum(VI) using 2’4'-dihydroxyacetophenone benzoylhydrazone (DHABH) as a new reagent has been developed. The greenish -yellow Mo(VI)-DHABH complex with λmax at 402 nm, is extractable into benzene from 0.01-0.10 M HCI medium containing 0.5-1.4 ml of 0.2% solution of the reagent in acetone. The 1:1 species in benzene obeys Beer's law in the range 0-17.5 µg Mo ml-1 and is stable for more than one week. The molar absorptivity, Sandell's sensitivity and standard deviation are 0.940 x 104 l mol-l cm-1, 0 0102 µg Mo cm-2 and ± 0.0055 respectively. The method has been used for the determination of molybdenum (VI) in various alloy steels and a wide variety of synthetic samples with satisfactory results.
Page(s): 438-439
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.33A(05) [May 1994]

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