Analyte retention decreases with mobile phase water content using the Cogent Bidentate C18 HPLC column has anything happened to the column – Tech Information Read More →
Do Cogent TYPE-C Silica columns have a partial positive charge and if so is retention for basic compounds reduced because of this – Tech Information Read More →
For the separation of polar intermediates in reversed phase HPLC which C18 column do you recommend – FAQ Read More →
My method uses an standard type-B silica based HPLC column is there a Cogent TYPE-C column equivalent substitute – FAQ Read More →
Since Cogent TYPE-C columns can be used in Reversed Phase or Normal Phase what do you suggest to switch these solvent systems which are not miscible – FAQ Read More →
Since Cogent TYPE-C Silica columns use a transition metal catalyst in production what is the presence of any trace quantity on the surface of the stationary phase- FAQ Read More →
Suggestion for separation of phenylephrine HCl acetaminophen and dextromethorphan – Tips & Suggestions Read More →
Using temperature changes for separations of terpenoids with the Cogent Bidentate C18 and UDC-Cholesterol HPLC columns – Tips & Suggestions Read More →
Using two HPLC columns together in a tandem separation for polar and non polar retention – Tips & Suggestions Read More →
What is the compatibility of Cogent TYPE-C Silica HPLC columns with UHPLC instruments – FAQ Read More →
