1. O-diethyl dithiophosphate for trace enrichment on activated carbon I: Analysis of high purity gallium and aluminum - determination of elements traces by flame AAS (injection method and loop AAS);BERNDT H.;Frez. Z. Anal. Chem.,1981
2. O-diethyl dithiophosphate for trace enrichment on activated carbon II: Analysis of high purity iron, chromium and manganese;BERNDT H.;Frez. Z. Anal. Chem.,1982
3. Substituted dithiophosphates II: Formation of metal diethyldithiophosphates and extraction from mineral acid solutions;BODE H.;Z. Anal. Chem.,1962
4. A low-cost flame atomic absorption spectrometry method for determination of trace metals in aqueous samples;CARASEK E.;Talanta,2000
5. The determination of arsenic (III) and arsenic (V) after extraction;CHACKRABORTI D.;Anal. Chim. Acta,1980