The capillary dynamolysis method as a char-acterized tool for crop quality determination

Summary

The growing organic market demands for methods which can describe food quality within the organic system. With the capillary dynamolysis technique patterns are produced on thin-layer chromatographic paper and evaluated as a fingerprint of the sample as a whole. To be applied in routine analysis the method has to be standardised according to international standard norms. After the laboratory process had been documented and a visual pattern evaluation method had been developed and applied for the evaluation of the patterns, the method was standard-ized for selected carrot and wheat samples, which is described here. For standardization several factors of influence were tested and the reproducibility between 3 different laboratories in the EU was investigated. Wheat and carrot samples from different varieties as well as different nitrogen fertilization could be differ-entiated as statistical significant.