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Spectrophotometric methods for the determination of tamoxifen citrate
Talanta, 1995Three simple and sensitive spectrophotometric methods for the determination of tamoxifen citrate have been developed. They are based on the formation of an ion-association complex between the drug and a dye, Erioglaucine A, which is extractable into chloroform and has an absorption maximum at 625 nm (method A), oxidation with excess potassium ...
C S, Sastry, J S, Rao, K R, Rao
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A Spectrophotometric Method of Assay for Belladonna Alkaloids*†
Journal of the American Pharmaceutical Association (Scientific ed.), 1953Abstract A spectrophotometric method for the determination of the alkaloids of Belladonna has been devised. The procedure consists of the formation of an extremely stable complex of atropine base with cupric sulfate and naphthenic acid in an organic phase.
L, WORRELL, R E, BOOTH
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A rapid spectrophotometric method for determination of piperazine
Talanta, 1987A spectrophotometric method has been developed for the determination of piperazine and its salts (citrate, phosphate, and tartrate) without prior separation, based on the interaction of piperazine or any of its salts with phenothiazine and N-bromosuccinimide in aqueous methanol.
S R, El-Shabouri +2 more
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New spectrophotometric method for determination of cephazolin
Talanta, 1983A simple, selective and accurate spectrophotometric method has been developed for the determination of the cephalosporin-type antibiotic cephazolin. The method is based on the fast preliminary acid hydrolysis of cephazolin and the spectrophotometric determination of one of its degradation products-2-mercapto-5-methylthiadiazole.
P, Papazova, P R, Bontchev, M, Kacarova
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A sensitive spectrophotometric method for determination of tris
Analytical Biochemistry, 1974Abstract The paper describes a sensitive spectrophotometric method for qualitative and quantitative determination of Tris, in the 0.1–1.0 μmole range. The procedure is almost identical with that used for histidine. The green-colored reaction product has two absorption peaks with maxima at 422 nm and 640 nm, in contrast to the single peak (540 nm) in ...
A, Kanarek, M, Tal
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Spectrophotometric method for the determination of dobutamine hydrochloride
The Analyst, 1983A rapid, accurate and simple method is proposed for the determination of dobutamine hydrochloride in the bulk drug and in vials. This method is based on measuring the intensity of the pink colour that develops when dobutamine hydrochloride is allowed to react with thiosemicarbazide in an alkaline - acetone medium.
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A chromatographic-spectrophotometric method for the determination of ceruloplasmin
Clinica Chimica Acta, 1960Abstract A quantitative method for the determination of ceruloplasmin has been developed. It is based on the separation of this protein from other serum constituents by means of DEAE-cellulose and the spectrophotometric determination of the vit. C reducible blue color that is eluted from the Chromatographie column.
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A spectrophotometric method for the assay of threonine dehydratase
Analytical Biochemistry, 1965Abstract The enzymic conversion of β-hydroxy α-amino acids to α-keto acids by ThrDH (sheep liver) was followed by a direct spectrophotometric method at 230 mμ. The assay was more sensitive to changes in keto acid concentrations than the 2,4-dinitrophenylhydrazone method because of the absence of the high and variable blanks of the latter method ...
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