William Stenzel

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A method for the determination of the mycotoxin citrinin (CT) in rye, wheat and barley is described. The proposed method is based on ethyl acetate extraction, solid phase clean-up (SPE) on aminopropyl columns and reversed phase high performance liquid chromatography with fluorescence detection (RP-HPLC-FLD). The limits of detection and quantification of CT(More)
Azorella compacta (llareta; Apiaceae) forms dense, woody, cushions and characterizes the high elevation rocky slopes of the central Andean Altiplano. Field studies of an elevational gradient of A. compacta within Lauca National Park in northern Chile found a reverse J-shape distribution of size classes of individuals with abundant small plants at all(More)
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