Obelisc N is a column which has very polar characteristics and works well for polar and charged analytes.
- Obelisc N offers both positively and negatively charged groups to interact with positively or negatively charged analytes.
- Multiple separation modes (NP, HILIC, IE).
- In HILIC mode, Obelisc N offers different selectivity form other HILIC or bare silica columns.
- Mass spec, ELSD, preparative and low UV (<220 nm) compatible, low concentration buffers.
Obelisc N columns are available in all standard dimensions Column IDs: 22 mm, 10 mm, 4.6 mm, 3.2 mm, 2.1 mm, 1 mm, 0.5 mm, 0.25 mm Column Lengths: 250 mm, 150 mm, 100 mm, 50 mm, 25 mm, 10 mm Particles: 10 um, 5 um Pores: 100 A

Comparison of Obelisc N, SeQuant® HILIC, and Bare Silica Effect of both pH and Organic Content on a Separation of Sugars, Amino Acids, and Carboxylic Acids Effect of Buffer on HPLC Separation of Buffers HILIC Retention of 1,5-Naphthalenedisulfonic Acid on Obelisc N Mixed-Mode HILIC Columns HILIC Separation of Aromatic Acids HILIC Separation of Carboxylic Acids HILIC Separation of Carboxymethylcysteine and Betaine HILIC Separation of Common Preservatives - Citric Acid, Ascorbic Acid and EDTA HILIC Separation of Epinephrine and Epinephrine Sulfonate HILIC Separation of Polyethylene Glycol HILIC Separation of Sugars on Obelisc N HILIC Separation of Surfactant Triton X-100 HILIC Separation of Vitamins Group B HPLC Analysis of TFA HPLC Retention of Sulfuric Acid on Obelisc N Column HPLC Separation of alpha-Aminobutyric, beta-Aminobutyric, and gamma-Aminobutyric acids on Obelisc N HPLC Separation of Glyphosate Reaction Intermediates and Impurities HPLC Separation of Nucleic Bases at pH 4 and 5 on Obelisc N HPLC Separation of Polar and Hydrophobic Drugs on Obelisc R and N HPLC Separation of Potassium, Perchlorate, Methanesulfonic, Chloride, Bromide, and Nitrate Ions on Obelisc N HPLC Separation of Vitamin C, Vitamin Group B, and Related Impurities Retention of Azide Ion on Obelisc N Column Retention of N-Nitrosarcosine on Obelisc N Column Retention of TFA on Atlantis and Obelisc N Separation of Serotonin, Dopamine, and Related Compounds Simultaneous Determination of Sodium and Sulfate Ions on Obelisc N Mixed-mode HILIC Column Simultaneous Separation of Melamine and Cyanuric Acid HPLC Analysis of Azide on Obelisc N Column HPLC Separation of Maleic Acid and Pentaerythritol HPLC Separation of Phosphorous and Phosphoric Acids |