✦ LIBER ✦

Simple method for the quantitative analysis of tetracyclines by direct fluorimetry after thin-layer chromatography on cellulose plates

✍ Scribed by Enrico Ragazzi; Giovanni Veronese

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 641 KB
Volume: 132
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(00)93776-2

No coin nor oath required. For personal study only.

✦ Synopsis

A thin-layer chromatographic method is described in which tetracyclines are separated on a cellulose layer by development with aqueous solutions of certain salts (magnesium, calcium, barium and zinc chloride). The spots exhibit good fluorescence in UV light, allowing ready detection without the necessity for treatment with any reagents. This fluorescence can be used for the direct photometric determination of the tetracyclines with good accuracy.

📜 SIMILAR VOLUMES

Improvement of the chemical analysis of

Improvement of the chemical analysis of antibiotics I. Simple method for the analysis of tetracyclines on silica gel high-performance thin-layer plates

✍ H. Oka; K. Uno; K.-I. Harada; Y. Kaneyama; M. Suzuki 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 403 KB

Simple method for the analysis of food d

Simple method for the analysis of food dyes on reversed-phase thin-layer plates

✍ Hisao Oka; Yoshitomo Ikai; Norihisa Kawamura; Masuo Yamada; Hiromasa Inoue; Tsut 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 953 KB

A technique for the determination of food dyes using reversed-phase thin-layer chromatography on octadecyl-modified silica is described. A solvent system containing 5.0% aqueous sodium sulphate solution enables good separation of the food dyes. Their separation is dependent on the pH of the solvent

A Simple Assay Method for Bacterial Bind

A Simple Assay Method for Bacterial Binding to Glycosphingolipids on a Polyvinylidene Difluoride Membrane after Thin-Layer Chromatography Blotting andin SituMass Spectrometric Analysis of the Ligands

✍ Tomomi Isobe; Masaharu Naiki; Shizuo Handa; Takao Taki 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 142 KB

An improved technique for the analysis o

An improved technique for the analysis of amino acids and related compounds on thin layers of cellulose : Part VIII. The characterization of leucyl and isoleucyl dipeptides by thin-layer and ion-exchange chromatography

✍ J.G. Heathcote; B.J. Keogh; R.J. Washington 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 515 KB

In this paper, which is a continuation of previous work (Part VI), two series of dipepticles, one with leucine and the other with isoleucine as the N-terminal residue, have been examined by both ion-exchange and thin-layer chromatography. The possibility of identifying these compounds in biological