✦ LIBER ✦

Differential spectrophotometric determination of tyrosine and tryptophan in pharmaceutical amino acid solutions

✍ Scribed by Demeester, J. (author);Bracke, M. (author);Vochten, R. (author);Lauwers, A. (author)

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 209 KB
Volume: 67
Category: Article
ISSN: 0022-3549
DOI: 10.1002/jps.2600670550

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Differential spectrophotometric determin

Differential spectrophotometric determination of tyrosine and tryptophan in pharmaceutical amino acid solutions

✍ Demeester, J. (author);Bracke, M. (author);Vochten, R. (author);Lauwers, A. (aut 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 209 KB

Pyrolysis-flow-injection analysis-spectr

Pyrolysis-flow-injection analysis-spectrophotometric determination of amino acids in aqueous solutions

✍ J.L. Burguera; M. Burguera; M. de la Guardia; A. Salvador 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 367 KB

A method IS described for the determmatlon of prohne, cysteme, alanme and tyrosme in aqueous mtiures based on their pyrolttlc conversion to nitrogen-cantammg compounds These compounds undergo through peroxodlsulphate digestion with a heated capdlary tube contannng a platmum wire m a closed flow syst

Simultaneous spectrophotometric determin

Simultaneous spectrophotometric determination in solid phase of aspirin and its impurity salicylic acid in pharmaceutical formulations

✍ A. Villari; N. Micali; M. Fresta; G. Puglisi 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 435 KB 👁 2 views

Simultaneous spectrophotometric determin

Simultaneous spectrophotometric determination of cystine and cysteine in amino acid mixtures using copper(II)—neocuproin reagent

✍ Esma Tütem; Reşat Apak 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 429 KB

Biologically Important sulphydryl compounds, e g cysteme, were determined by treatmg the reductant tluol with copper(B)-neocuprom (NC) reagent m ammonium acetate-buffered medium, followed by measunng the absorbance of the copper(I)-Nc complex at 450 nm Cystme, d present m a rmxture Hnth cysteme, was

Extraction of Electrolytes from Aqueous

Extraction of Electrolytes from Aqueous Solutions and Their Spectrophotometric Determination by Use of Acid-Base Chromoionophores in Lipophylic Solvents

✍ Paola Barberi; Marco Giannetto; Giovanni Mori 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 134 KB 👁 2 views

Determination of trace amounts of impuri

Determination of trace amounts of impurities in pharmaceutical preparations by differential-pulse polarography: Part 1. Determination of diisooctyl maleate in the pharmaceutical sodium 1,4-bis(2-ethylhexyl)sulphosuccinate and of maleic acid in fumaric acid

✍ Walenty Szczepaniak; Maria Ren 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 301 KB

A dfierentlal-pulse polarographlc procedure IS described for the determmatlon of lmpuntles such as dusooctyl maleate and maleic acid m pharmaceutxal products The concentration range for dnsooctyl maleate IS 1 x 10-6-30 X 10m6 pg ml-' and the detection hnut IS 0 2 pg ml-', for maleic acid the detecti