Determination of ochratoxin A in licorice and licorice extracts by high-performance liquid chromatography coupled with fluorescence detection: collaborative study.

A collaborative study was conducted to validate an analytical method for the determination of ochratoxin A (OTA) in licorice (root powder) and licorice extracts (paste and powder). Contents of OTA ranged from 26 to 141 microg/kg and from 8 to 52 microg/kg for licorice extracts and root material, respectively. For the analysis, a test portion is extracted with a mixture of methanol and aqueous sodium bicarbonate solution.

Liquid chromatographic determination of deoxynivalenol in baby food and animal feed: interlaboratory study.

An interlaboratory study was conducted for the determination of deoxynivalenol in baby food and animal feed by high-performance liquid chromatography with UV detection. The study included 14 participants representing a cross section of industry, official food control, and research facilities. Mean recoveries reported ranged from 89% (at 120 microg/kg) to 85% (at 240 microg/kg) for baby food and from 100% (at 200 microg/kg) to 93% (at 400 microg/kg) for animal feed.