Esteve • supplied in India by Akira Analytical Solutions Pvt. Ltd.
SS Whelk Columns
SS Whelk Columns are Pirkle-type chiral HPLC columns based on the S,S selector configuration for enantiomeric separation, pharmaceutical enantiomer analysis and API impurity profiling.

What are SS Whelk Columns?
SS Whelk Columns are Pirkle-type chiral HPLC columns based on the S,S selector configuration for enantiomeric separation, pharmaceutical enantiomer analysis and API impurity profiling.
SS Whelk Columns use π–π interaction, hydrogen bonding, dipole interaction and steric fit to discriminate enantiomers. They are useful in normal phase, polar organic and selected reversed-phase methods and can complement polysaccharide chiral phases when racemates need alternate selectivity.
Technology, mechanism and applications
SS Whelk Columns use π–π interaction, hydrogen bonding, dipole interaction and steric fit to discriminate enantiomers. They are useful in normal phase, polar organic and selected reversed-phase methods and can complement polysaccharide chiral phases when racemates need alternate selectivity.
- Method development and replacement screening support
- Pharmaceutical QC, impurity profiling and research laboratories
- Typical analytes include APIs, intermediates, ionic compounds, racemates and polar analytes depending on family
- Storage and care: use compatible solvents, filter mobile phases and follow validated laboratory procedures.
Technical support
For product selection, dimensions and method transfer support, contact Akira Analytical Solutions Pvt. Ltd..
Available catalog specifications
| Product name | Chemistry | Particle size | Dimension | Catalog number |
|---|---|---|---|---|
| (S,S) Whelk-O 1 Guard Kit (3 qty)10mm x 3mm, 5um, *guard holder sold separately | WHELK-O1 | 5 | 10 mm x 3 mm | 1-780100-300 |
| (S,S) Whelk-O 1, 250mm x 4.6mm, 5um | WHELK-O1 | 5 | 250 mm x 4.6 mm | 1-780101-300 |
| (S,S) Whelk-O 1, 250mm x 10mm, 5um | WHELK-O1 | 5 | 250 mm x 10 mm | 1-780102-300 |
| (S,S) Whelk-O 1, 150mm x 4.6mm, 5um | WHELK-O1 | 5 | 150 mm x 4.6 mm | 1-780105-300 |
| (S,S) Whelk-O 1, 150mm x 2.1mm, 5um | WHELK-O1 | 5 | 150 mm x 2.1 mm | 1-780106-300 |
| (S,S) Whelk-O 1, 50mm x 4.6mm, 3.5um | WHELK-O1 | 3.5 | 50 mm x 4.6 mm | 1-780120-300 |
| (S,S) Whelk-O 1, 100mm x 4.6mm, 3.5um | WHELK-O1 | 3.5 | 100 mm x 4.6 mm | 1-780121-300 |
| (S,S) Whelk-O 1,150mm x 4.6mm, 3.5um | WHELK-O1 | 3.5 | 150 mm x 4.6 mm | 1-780122-300 |
| (S,S) Whelk-O 1, 250mm x 4.6mm, 3.5um | WHELK-O1 | 3.5 | 250 mm x 4.6 mm | 1-780123-300 |
| (S,S) Whelk-O 1, 150mm x 3mm, 3.5um | WHELK-O1 | 3.5 | 150 mm x 3 mm | 1-780124-300 |
| (S,S) Whelk-O 1, 100mm x 3mm , 3.5um | WHELK-O1 | 3.5 | 100 mm x 3 mm | 1-780125-300 |
| (S,S) Whelk-O 1, 50mm x 3mm, 3.5um | WHELK-O1 | 3.5 | 50 mm x 3 mm | 1-780126-300 |
| (S,S) Whelk-O 1, 20mm x 3mm, 3.5um | WHELK-O1 | 3.5 | 20 mm x 3 mm | 1-780127-300 |
| (S,S) Whelk-O 1, 50mm x 2.1mm, 3.5um | WHELK-O1 | 3.5 | 50 mm x 2.1 mm | 1-780128-300 |
| (S,S) Whelk-O 1, 100mm x 2.1mm, 3.5um | WHELK-O1 | 3.5 | 100 mm x 2.1 mm | 1-780129-300 |
| (S,S) Whelk-O 1, 150mm x 2.1mm, 3.5um | WHELK-O1 | 3.5 | 150 mm x 2.1 mm | 1-780130-300 |
| (S,S) Whelk-O 1 Guard Kit (3 qty)10mm x 3mm, 3.5um, *guard holder sold separately | WHELK-O1 | 3.5 | 10 mm x 3 mm | 1-780131-300 |
| (S,S) Whelk-O 1, 100mm x 4.6mm, 5um | WHELK-O1 | 5 | 100 mm x 4.6 mm | 1-780151-300 |
| (S,S) Whelk-O 1, 50mm x 4.6mm, 5um | WHELK-O1 | 5 | 50 mm x 4.6 mm | 1-780152-300 |
| (S,S) Whelk-O 1, 30mm x 4.6mm, 5um | WHELK-O1 | 5 | 30 mm x 4.6 mm | 1-780153-300 |
| (S,S) Whelk-O 1, 100mm x 2.1mm, 5um | WHELK-O1 | 5 | 100 mm x 2.1 mm | 1-780154-300 |
| (S,S) Whelk-O 1, 50mm x 2.1mm, 5um | WHELK-O1 | 5 | 50 mm x 2.1 mm | 1-780155-300 |
| (S,S) Whelk-O 1, 50mm x 3mm, 5um | WHELK-O1 | 5 | 50 mm x 3 mm | 1-780159-300 |
| (S,S) Whelk-O 1, 100mm x 3mm , 5um | WHELK-O1 | 5 | 100 mm x 3 mm | 1-780160-300 |
| (S,S) Whelk-O 1, 100mm x 4.6mm, 1.8um | WHELK-O1 | 1.8 | 100 mm x 4.6 mm | 1-780161-300 |
| (S,S) Whelk-O 1, 50mm x 4.6mm, 1.8um | WHELK-O1 | 1.8 | 50 mm x 4.6 mm | 1-780162-300 |
| (S,S) Whelk-O 1, 50mm x 2.1mm, 1.8um | WHELK-O1 | 1.8 | 50 mm x 2.1 mm | 1-780163-300 |
| (S,S) Whelk-O 1, 100mm x 2.1mm, 1.8um | WHELK-O1 | 1.8 | 100 mm x 2.1 mm | 1-780164-300 |
| (S,S) Whelk-O 1, 50mm x 3mm, 1.8um | WHELK-O1 | 1.8 | 50 mm x 3 mm | 1-780165-300 |
| (S,S) Whelk-O 1, 100mm x 3mm, 1.8um | WHELK-O1 | 1.8 | 100 mm x 3 mm | 1-780166-300 |
| (S,S) Whelk-O 1, 20mm x 3mm, 1.8um | WHELK-O1 | 1.8 | 20 mm x 3 mm | 1-780167-300 |
| (S,S) Whelk-O 1, 150mm x 4.6mm,1.8um | WHELK-O1 | 1.8 | 150 mm x 4.6 mm | 1-780168-300 |
| (S,S) Whelk-O 1, 50mm x 2.1mm, 2.7um | WHELK-O1 | 2.7 | 50 mm x 2.1 mm | 1-780171-300 |
| (S,S) Whelk-O 1, 100mm x 2.1mm, 2.7um | WHELK-O1 | 2.7 | 100 mm x 2.1 mm | 1-780172-300 |
| (S,S) Whelk-O 1, 150mm x 2.1mm, 2.7um | WHELK-O1 | 2.7 | 150 mm x 2.1 mm | 1-780173-300 |
| (S,S) Whelk-O 1, 50mm x 4.6mm, 2.7um | WHELK-O1 | 2.7 | 50 mm x 4.6 mm | 1-780174-300 |
| (S,S) Whelk-O 1, 100mm x 4.6mm, 2.7um | WHELK-O1 | 2.7 | 100 mm x 4.6 mm | 1-780175-300 |
| (S,S) Whelk-O 1,150mm x 4.6mm, 2.7um | WHELK-O1 | 2.7 | 150 mm x 4.6 mm | 1-780176-300 |
| (S,S) Whelk-O 1, 50mm x 3mm, 2.7um | WHELK-O1 | 2.7 | 50 mm x 3 mm | 1-780177-300 |
| (S,S) Whelk-O 1, 100mm x 3mm, 2.7um | WHELK-O1 | 2.7 | 100 mm x 3 mm | 1-780178-300 |
| (S,S) Whelk-O 1, 150mm x 3mm, 2.7um | WHELK-O1 | 2.7 | 150 mm x 3 mm | 1-780179-300 |
| (S,S) Whelk-O 1 Guard Kit (3 qty), 10mm x 3mm, 2.7um, *guard holder sold separately | WHELK-O1 | 2.7 | 10 mm x 3 mm | 1-780180-300 |
| (S,S) Whelk-O 1, 250mm x 4.6mm, 20um | WHELK-O1 | 20 | 250 mm x 4.6 mm | 1-781501-300 |
| (S,S) Whelk-O 1, 250mm x 4.6mm, 5um | WHELK-O1 EXSIL | 5 | 250 mm x 4.6 mm | 1-786101-300 |
| (S,S) Whelk-O 1, 250mm x 10mm, 5um | WHELK-O1 EXSIL | 5 | 250 mm x 10 mm | 1-786102-300 |
| (S,S) Whelk-O 1, 150mm x 4.6mm, 5um | WHELK-O1 EXSIL | 5 | 150 mm x 4.6 mm | 1-786150-300 |
| (S,S) Whelk-O 1, 250mm x 4.6mm, 16um | WHELK-O1 | 16 | 250 mm x 4.6 mm | 1-786351-300 |
| (S,S) Whelk-O 2, 50mm x 4.6mm, 10um | WHELK-O2 | 10 | 50 mm x 4.6 mm | 1-786401-300 |
| (S,S) Whelk-O 2, 250mm x 4.6mm, 10um | WHELK-O2 | 10 | 250 mm x 4.6 mm | 1-786415-300 |
| (S,S) Whelk-O 2, 250mm x 10mm, 10um | WHELK-O2 | 10 | 250 mm x 10 mm | 1-786425-300 |
| (S,S) Whelk-O 2, 150mm x 4.6mm, 10um | WHELK-O2 | 10 | 150 mm x 4.6 mm | 1-786447-300 |
| (S,S) Whelk-O 2, 250mm x 4.6mm, 16um | WHELK-O2 | 16 | 250 mm x 4.6 mm | 1-786455-300 |
| (S,S) Whelk-O 1, 250mm x 4.6mm, 10um | WHELK-O1 | 10 | 250 mm x 4.6 mm | 1-786615-300 |
| (S,S) Whelk-O 1, 250mm x 10mm, 10um | WHELK-O1 | 10 | 250 mm x 10 mm | 1-786625-300 |
| (S,S) Whelk-O 1 , 50mm x 2.1mm, 5um | WHELK-O1 EXSIL | 5 | 50 mm x 2.1 mm | 1-786900-300 |
| (S,S) Whelk-O 1, 50mm x 2.1mm, 10um | WHELK-O1 | 10 | 50 mm x 2.1 mm | 1-786902-300 |
| (S,S) Whelk-O 1, 50mm x 4.6mm, 5um | WHELK-O1 EXSIL | 5 | 50 mm x 4.6 mm | 1-786904-300 |
| (S,S) Whelk-O 1, 50mm x 4.6mm, 10um | WHELK-O1 | 10 | 50 mm x 4.6 mm | 1-786906-300 |
| (S,S) Whelk-O 1, 100mm x 4.6mm, 10um | WHELK-O1 | 10 | 100 mm x 4.6 mm | 1-786908-300 |
| (S,S) Whelk-O 2 , 100mm x 4.6mm, 10um | WHELK-O2 | 10 | 100 mm x 4.6 mm | 1-786910-300 |
| (S,S) Whelk-O 1, 100mm x 4.6mm, 5um | WHELK-O1 EXSIL | 5 | 100 mm x 4.6 mm | 1-786912-300 |
| (S,S) Whelk-O 1, 150mm x 2.1mm, 5um | WHELK-O1 EXSIL | 5 | 150 mm x 2.1 mm | 1-786950-300 |
| (S,S) Whelk-O 2, 150mm x 2.1mm, 10um | WHELK-O2 | 10 | 150 mm x 2.1 mm | 1-786953-300 |
Frequently asked questions
What makes SS Whelk useful for chiral QC?
The S,S Pirkle selector provides predictable multiple-interaction recognition for enantiomeric purity and impurity profiling.
Can SS Whelk be used for preparative work?
Yes, cataloged analytical, semi-preparative and guard formats support screening and scale-up workflows.
How does SS Whelk compare with polysaccharide columns?
It offers complementary small-molecule recognition and may resolve compounds that are weakly retained or poorly selective on polysaccharide phases.
Which mobile phases are common?
Normal phase, polar organic and selected reversed-phase conditions are used depending on analyte ionization and solubility.
Who supports SS Whelk in India?
Akira Analytical Solutions Pvt. Ltd. provides product selection and method support in India.