Aqueous Normal Phase ANP ballistic gradients compared to same in HILIC – Tips & Suggestions 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 →
I heard that there is not a good alternative to HILIC to achieve sufficient retention for some compounds – FAQ Read More →
Should I use methanol as the organic solvent in HPLC when using Aqueous Normal Phase ANP – 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 →
Using temperature changes for separations of terpenoids with the Cogent Bidentate C18 and UDC-Cholesterol HPLC columns – Tips & Suggestions Read More →
What is the compatibility of Cogent TYPE-C Silica HPLC columns with UHPLC instruments – FAQ Read More →
Why you should use temperature control with the UDC-Cholesterol column – Tips & Suggestions Read More →