caa a22 4500 465749313 CHVBK 20180323111829.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322031 doi (NATIONALLICENCE)springer-10.1007/BF00322031 Separation and determination of xanthates in mixtures as dixanthogens by normal-phase HPLC on a diol-phase [Elektronische Daten] [Chunshan Zhou, Albert Bahr, Georg Schwedt] Summary: A normal-phase-HPLC method for determining individual xanthates in mixtures is presented. The quantitative analyses have been carried out after separation on a LiChrosorb-Diol column using the non-polar solvent n-hexane as mobile phase and UV-detection at 254 nm. The developed HPLC procedure possesses a high sensitivity and high speed of analysis, especially for xanthates with longer alkyl chains. This method was applied to the determination of xanthates in technical flotation liquors. Relative standard deviations for contents of 0.6×10−5 mol/l to 1.2×10−5 mol/l were 2.76 to 5.45%. The absolute limit of determination for potassium octyl xanthate is 0.2 ng. Springer-Verlag, 1990 Zhou Chunshan Department of Chemistry, Central South University of Technology, Changsha, Peoples Republic of China aut Bahr Albert Institute of Mineral Processing and Benefication, Technical University Clausthal, Erzstrasse 20, W-3392, Clausthal-Zellerfeld, Federal Republic of Germany aut Schwedt Georg Institute of Inorganic and Analytical Chemistry, Technical University Clausthal, Paul-Ernst-Strasse 4, W-3392, Clausthal-Zellerfeld, Federal Republic of Germany aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/8(1990-01-01), 908-911 0937-0633 338:8<908 1990 338 216 https://doi.org/10.1007/BF00322031 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322031 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhou Chunshan Department of Chemistry, Central South University of Technology, Changsha, Peoples Republic of China aut NATIONALLICENCE 700 1- Bahr Albert Institute of Mineral Processing and Benefication, Technical University Clausthal, Erzstrasse 20, W-3392, Clausthal-Zellerfeld, Federal Republic of Germany aut NATIONALLICENCE 700 1- Schwedt Georg Institute of Inorganic and Analytical Chemistry, Technical University Clausthal, Paul-Ernst-Strasse 4, W-3392, Clausthal-Zellerfeld, Federal Republic of Germany aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/8(1990-01-01), 908-911 0937-0633 338:8<908 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer