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 →
Analyzing metformin in plasma samples how do I obtain reproducible results and peak shapes – FAQ Read More →
Aqueous Normal Phase ANP ballistic gradients compared to same in HILIC – Tips & Suggestions Read More →
Aqueous Normal Phase ANP defined & compared to Reversed Phase & Normal Phase definitions HPLC Read More →
Are the Cogent TYPE-C Silica based stationary phases available for sale as bulk materials – FAQ Read More →
Are there HPLC columns that could be used to separate both polar and nonpolar compounds in a single run – FAQ Read More →
Can I use a silica or Silica-C guard column with an analytical column of a different phase – FAQ Read More →
Can I use the Cogent Diamond Hydride column without mobile phase additives like formic acid – FAQ Read More →
Can Reversed Phase and ANP mechanisms operate with the same effect at the same time – FAQ 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 →
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 →
High pressure develops after flushing a Cogent Diamond Hydride column with acetonitrile cause and solution – FAQ Read More →
How can Cogent TYPE-C HPLC columns offer faster results compared to other type of silica based columns – FAQ Read More →
How can I fix poor peak shape for phosphorylated compounds in aqueous normal phase ANP methods – FAQ Read More →
How often do I need to do the conditioning procedure for a new Diamond Hydride column – FAQ Read More →