✦ LIBER ✦

The detection of keto acids in biological fluids by two dimensional paper chromatography of their 2,4-dinitrophenylhydrazones

✍ Scribed by R.F. Coward; P. Smith

Publisher: Elsevier Science
Year: 1968
Tongue: English
Weight: 578 KB
Volume: 33
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(00)98680-1

No coin nor oath required. For personal study only.

✦ Synopsis

After conversion

to 2,4-dinitrophenylhydrazones, keto acids in biological fluids were extracted into isopropyl ether followed by NaHCO, and finally into ethyl acetate.

📜 SIMILAR VOLUMES

Some technical improvements in the paper

Some technical improvements in the paper chromatography of keto acid 2,4-dinitrophenylhydrazones

✍ A.S. Saini 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 292 KB

Analysis of keto acids as their methyl e

Analysis of keto acids as their methyl esters of 2,4-dinitrophenylhydrazone derivatives by gas chromatography and gas chromatography-mass spectrometry

✍ Rafael Navarro-González; Alicia Negrón-Mendoza; Guadalupe Albarrán 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 536 KB

Determination of 2-carboxy thiazolidine-

Determination of 2-carboxy thiazolidine-4-carboxylic acid in biological fluids by ion-exchange chromatography

✍ J. Alary; G. Carrera; C. Escrieut; A. Periquet 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 607 KB

A column ion-exchange chromatographic method for the determination of 2-carboxy thiazolidine-4-carboxylic acid (TDCA) in blood and urine is described. After elimination of endogenous thiols, alkaline hydrolysis of the compound yields cysteine which is determined spectrophotometrically. The described

Fast method for the simultaneous determi

Fast method for the simultaneous determination of 2-oxo acids in biological fluids by high-performance liquid chromatography

✍ M. Lange; M. Mályusz 📂 Article 📅 1994 🏛 Elsevier Science ⚖ 450 KB

Simultaneous analysis of indole-3-acetic

Simultaneous analysis of indole-3-acetic acid and detection of 4-chloroindole-3-acetic acid and 5-hydroxyindole-3-acetic acid in plant tissues by high-performance liquid chromatography of their 2-methylindolo-α-pyrone derivatives

✍ David Blakesley; John Frederick Hall; Geoffrey Donald Weston; Malcolm Charles El 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 697 KB

The use of high-performance liquid chromatography in the reversed-phase mode coupled to a spectrophotofluorimetric detector allowed the selective detection of acidic indoles possessing a C-3 methylene side chain, following the reaction of a purified plant extract with acetic anhydride. Of these acid