SPE polypropylene column CHROMABOND® SiOH-H2SO4/SA, 250 stuks

SPE-Polypropylene column CHROMABOND® SiHO-H2SO4/SA, 3ml,abs. weight 500/500mg Enrichment of PCBs from oil Special combination phase: SA: strongly acidic cation exchanger based on silica with benzenesulphonic acid modification for removal of ionic and sulphur-containing compounds SiOH-H2SO4: H2SO4-impregnated silica phase for oxidation of accompanying compounds to ionic and/or polar compounds Recommended application: extraction of PCBs from oil with reference to German industrial standard DIN 51527, part 1. This combination column is used together with a SiOH column.