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 →
Analyze phosphorylated compounds with the Cogent Diamond Hydride column – Tips & Suggestions Read More →
Aqueous Normal Phase ANP ballistic gradients compared to same in HILIC – Tips & Suggestions Read More →
Are there HPLC columns that could be used to separate both polar and nonpolar compounds in a single run – FAQ Read More →
Determining Efficiency of HPLC methods comparing 4um v 2.o HPLC columns – 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 →
Do Tanaka Plots for HPLC apply to columns used with Aqueous Normal Phase ANP methods – FAQ Read More →
Eliminate broad split peaks in Aqueous Normal Phase ANP methods and a methanol diluent- Tips & Suggestions Read More →
For the separation of polar intermediates in reversed phase HPLC which C18 column do you recommend – FAQ Read More →
High molecular weight compounds that won’t retain on Cogent Diamond Hydride column try Cogent Bidentate C8 300 – Tips & Suggestions Read More →
How can I restore my Diamond Hydride HPLC column after I ran out of mobile phase and air was accidently introduced into it – FAQ Read More →
How do I avoid distorted peak shapes when using a basic mobile phase pH for the analysis of a lipophilic amine – FAQ Read More →
How do retention and efficiency of asymmetric dimethylarginine ADMA compare using 4um vs 2.o Diamond Hydride columns – AppNote Read More →
How much higher is the pressure generated on the Cogent 2.o columns than 4um phases – FAQ Read More →
How often do I need to do the conditioning procedure for a new Diamond Hydride column – FAQ Read More →
How to choose a suitable mobile phase additive for negative ionization mode LCMS – Tips & Suggestions Read More →
How to get improved retention and peak shape for glutamine glutamic acid and aspartic acid – Tips & Suggestions Read More →