Primesep 200 separates with baseline resolution the nucleosides (deoxyuridine, deoxyguanosine, deoxycytidine, deoxyadenozine) by a combination of cation exchange and reversed phase. These compounds are not retained on a traditional C18 column. Primesep 200 has an embedded anionic functional group which helps retain polar compounds by polar and ion-exchange mechanisms. Excellent peak shape results with a mass spec compatible mobile phase of water, acetonitrile (MeCN, ACN) and trifluoracetic acid (TFA) with UV detection at 270 nm.
Nucleosides consisting of deoxyribose and a nucleobase cannot be separated on a common C18 column. By using a Primesep 200 mixed-mode column with a cation-exchange mechanism, nucleosides: deoxyuridine, deoxyguanosine, deoxycytidine and deoxyadenosine, can be baseline separated in a short time using an isocratic method with a simple mobile phase of water, acetonitrile (MeCN, ACN) and TFA as buffer. UV detection at 270nm.