The Agilent 1.8 um selectivity method development kit includes 827768-901 ZORBAX RRHT Bonus-RP, 2.1 x 50 mm, 1.8 um, 600 bar, 959741-902 ZORBAX RRHT Eclipse Plus C18, 2.1 x 50 mm, 1.8 um, 600 bar, 959741-912 ZORBAX RRHT Eclipse Plus Phenyl-Hexyl, 2.1 x 50 mm, 1.8 um, 600 bar. It measures 2.1 mm ID x...