Sulbha Amlathe

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A sensitive method is described for the spectrophotometric determination of acetone in water. Acetone reacts with vanillin in alkaline medium forming a yellow-orange dye with an absorption maximum at 430 nm. Beer's law is obeyed in the range from 0.5 to 5 p.p.m. of acetone in water. Molar absorptivity and Sandell's sensitivity were found to be 11.0 x 10(3)(More)
An extractive spectrophotometric method for the determination of cyanide in wastewater is developed. Cyanide is reacted with bromine to form cyanogen bromide, which subsequently reacts with pyridine. Glutaconic aldehyde is formed through the heterolytic cleavage of pyridine ring, which is then coupled with 4-amino salicylic acid. A yellow orange dye formed(More)
The synthesis, characterization of, 2,2'-[ethane-1,2-diylbis(oxycarbonyl)]dibenzoic acid , and rigid rod formation of diester-based bolaamphiphiles in water was analyzed by FESEM/EDS, UV-Visible and using simultaneous TGA, DSC and DTA measurement under non-isothermal condition in N2 atmosphere. The bolaamphiphiles proved to be coordinated to divalent(More)
A simple, rapid, stable and sensitive direct visible spectrophotometric method has been developed for the determination of trace amount of arsenic in environmental samples of Bhopal city using N-PBHA, N-pClPBHA and N-p-ClPCHA, Arsenic (III) reacts with different hydroxamic acids and forms light pink to violet colored complex in acidic medium which were(More)
A rapid, simple, selective and sensitive method for the spectrophotometric determination of nitrite in water, soil and biological samples has been developed and optimum reaction conditions along with other analytical parameters have been evaluated. Nitrite reacts with N-phenyl-benzo-hydroxamic acid N-PBHA(I), N-p-chloro-phenyl-benzohydroxamic acid(More)
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