E. von Arx

Eine Multidimensionale technik zur chromatographischen identifizierung von aminosäuren

A novel multidimensional technique has been elaborated and found suitable for the chromatographic identification of 52 amino acids. This technique is based on three two-dimensional cellulose thine-layer chromatograms using the same solvent system for the first dimension and three different systems of suitable properties for the second dimension. With this method all amino acids can be differentiated and characterized by fixed positions, and in addition by some colour reactions. The relative merits of cellulose and silicagel as carriers are discussed in relation to separation efficiency, reproducibility and sensitivity of detection.

Beobachtungen an lösungsmitteln, trägern und trennkammern

Abstract Investigation of solvensts, adsorbents and separation chambers The behaviour and the interactions of the volatile and hydrophilic solvent components, such as methanol, are investigated under various conditions of thin-layer chromatography. Some properties of adsorbents and commercial plates are also discussed.

Hilfsmittel für die dünnshicht-chromatographie

Zusammenfassung Bau und Funktion einiger Hilffsmittel fur die Dunnschicht-chromatographie (DC) wurden beschrieben: Streichgerat fur die Herstellung gleichmassiger dunner und dicker Schichten; Hilfsmittel zur Vorprufung fur die praparative DC; Substanz-Applikator fur die praparative DC auf langen Platten.