Merck Patent Gmbh

Michaela Oberle

Thomas Rudolph

Herwig Buchholz

Andreas Ries

Michael Schulz

Mark Hinkle

Dirk Einspänner

Thomas Ingendoh

Monika Bäumle

Eric Schunda

Robert Fischer

Thin layer chromatography device

A method and device for the optical scanning of a chromatographic sample (), where a sample plate () holding the sample () is illuminated with light from a first illumination device () and the light emitted by the sample plate () is detected by an optical detector device () which detects in cell form or area form, a second illumination device () is preferably firstly activated in a preparation step. The sample plate () is displaced in a first displacement direction relative to the detector device (), illuminated by the first illumination device () and a first measurement image is recorded. The sample plate () is displaced in a second displacement direction relative to the detector device (), illuminated by the second illumination device (), and a second measurement image is recorded.

Method and device for the optical scanning of a chromatographic sample

The invention relates to the use of specific ascorbic acid derivatives for dyeing keratin-containing fibers or as direct dyes for the preparation of a composition for dyeing keratin-containing fibers, and to methods for dyeing keratin-containing fibers, in particular for dyeing human hair.

Use of ascorbic acid derivatives for dyeing keratin-containing fibres

The invention relates to the use of &#x3b1;-amino acid derivatives for improving the solubility of sparingly soluble substances in water or aqueous solutions, and to mixtures and preferred compositions.

&#x3b1;-amino acid derivatives for improving solubility

Growing community of inventors

Rodgau, Germany

Michaela Oberle