Profile: DyChrom specializes in chromatography. We offer recycling preparative HPLC, countercurrent chromatograph, purge & trap head space sampler, curie point pyrolyzer, HPLC columns and cryogenic sample crusher. Our HPLC columns include chemcosorb, chemcobond, nucleosil, polygosil, jaigel, shoex/asahipak, mightysil, velocity, sumichiral and L-column.