Untersuchung von Traubensaft mit den drei Bildschaffenden Methoden Kupferchloridkristallisation, Steigbildmethode und Rundfilterchromatographie

Summary

Ten encoded grape samples from 2006 were taken from a long-term field trial on the
comparison of different organic and conventional production systems at Geisenheim,
Germany. The samples were examined with the picture forming methods biocrystallization
according to Pfeiffer, capillary dynamolysis according to Wala and circular
chromatography according to Pfeiffer. The pictures of the encoded samples were i.
differentiated and ii characterised. Two encoded samples of each of the five production
methods ‘conventional’, ‘bio-organic’, ‘bio-dynamic without horn silica’,‘bio-dynamic
with three horn silica applications’ and ‘bio-dynamic with four horn silica applications’
were clearly differentiated with highest accuracy, i.e. 100%.