chromatographic column 1,high surface separate; 2.high carbon content ... -phase structureGrain sizeaperture specific surface areaLoad carbonPH rangePntulips BP-C18 3um,5um,10um120 Â300m2/g17%1.5~9.5Pntulips ... ,5um,10um120Â300m2/g0%1.0~8.0Pntulips BP300A-C18 5um300Â100m2/g8% 1.5 ~9.5 It’ ... AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); chromatographic column