Mobile Phase recommendation Cogent Diamond Hydride columns for use with serum samples in Aqueous Normal Phase LCMS – Tips & Suggestions Read More →
Pre mix your diluent and mobile phase in sample preparation for HPLC – Tips & Suggestions Read More →
Retention and or peak shape for citric acid has changed compared to data from a previous HPLC run – Tips & Suggestions 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 →
Two gradients to use for analysis of hydrophilic and or hydrophobic molecules in the same Aqueous Normal Phase ANP method – Tips & Suggestions Read More →
Type of gradient to use for analysis of hydrophilic and hydrophobic molecules in the same HPLC or LCMS run – Tips & Suggestions Read More →
Use a low concentration of salt in your mobile phase to avoid ion suppression and build up on your inlet source – 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 the wavelength calibration solution holmium oxide for HPLC UV detector performance qualification – Tips & Suggestions Read More →
What can cause changing retention times and a peak showing up in my blank with a Silica-C column – FAQ Read More →
What is the pilot length or dimension X depth for end fittings uses to connect HPLC columns – FAQ Read More →
What problems can occur when using a dedicated Reversed Phase HPLC instrument for an Aqueous Normal Phase ANP method for the first time – FAQ Read More →
Which parameters can be determined with the supplied solutions in the MicroSolv PQ Excel template – FAQ Read More →