Ion exchange chromatography can be a useful tool available to the analytical chemist. In this separation mode, an ionized moiety on the stationary phase interacts electrostatically with an oppositely charged analyte. There are several types of ion exchange that can be used, such as strong anion exchange, weak anion exchange, strong cation exchange, and weak […]
Category: AppNotes Cogent UDA
Determination of an Antibiotic – AppNote
Using Carboxylic Acid Phase Attachments No 30 Determination of an Antibiotic.pdf 0.1 Mb Download File
Ethyl Glucuronide Analysis by HPLC with LCMS – AppNote
Method Optimization in Separation of Ethyl Glucuronide and Ethyl Sulfate Ethyl Glucuronide and Ethyl Sulfate are compounds that are not well-retained or separated using Reversed Phase Columns due to their hydrophilicity thus requiring high water concentrations in the Mobile Phase. To avoid the use of high water content Mobile Phases, HILIC columns were sought as […]
Separation of Adenine Nucleotides – AppNote
AMP, ADP, ATP on UDA column Attachments No 259 Separation of Adenine Nucleotides.pdf 0.2 Mb Download File
Separation of Inosine Nucleotides – AppNote
IMP, IDP, and ITP on UDA column Attachments No 261 Separation of Inosine Nucleotides.pdf 0.2 Mb Download File
Separation of Nucleotides – AppNote
AMP, NAD, NADP, and GTP on UDA column Attachments No 260 Separation of Nucleotides.pdf 0.2 Mb Download File
Vardenafil (Levitra®) Analyzed by HPLC – AppNote
LC-MS compatible assay method done on HPLC. Attachments No 266 Vardenafil.pdf 0.4 Mb Download File