S. Butz

Determination of chlorophenoxy and other acidic herbicide residues in ground water by capillary gas chromatography of their alkyl esters formed by rapid derivatization using various chloroformates

S. Butz, H. Stan, 1993 .

Determination of phenoxyalkanoic acids and other acidic herbicides at the low ppt level in water applying solid-phase extraction with RP-C18 materi

T. Heberer, S. Butz, H. Stan, 1994 .

Screening of 265 Pesticides in Water by Thin-Layer Chromatography with Automated Multiple Development

H.-J. Stan, S. Butz, S. Butz, 1995 .

Multimethod Applying AMD-TLC Analysis to Drinking Water

S. Butz, H. Stan, 1995 .

Analysis of Phenoxycarboxylic Acids and Other Acidic Compounds in Tap, Ground, Surface and Sewage Water at the Low ng/1 Level

T. Heberer, S. Butz, H. Stan, 1995 .