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catalog #particle sizelengthidmodificationunits
9217331
3μm
30mm
1.0mm
 
ea.
9217351
3μm
50mm
1.0mm
 
ea.
9217311
3μm
100mm
1.0mm
 
ea.
9217361
3μm
150mm
1.0mm
 
ea.
9217332
3μm
30mm
2.1mm
 
ea.
9217352
3μm
50mm
2.1mm
 
ea.
9217312
3μm
100mm
2.1mm
 
ea.
9217362
3μm
150mm
2.1mm
 
ea.
9217333
3μm
30mm
3.2mm
 
ea.
9217353
3μm
50mm
3.2mm
 
ea.
9217313
3μm
100mm
3.2mm
 
ea.
9217363
3μm
150mm
3.2mm
 
ea.
9217335
3μm
30mm
4.6mm
 
ea.
9217355
3μm
50mm
4.6mm
 
ea.
9217315
3μm
100mm
4.6mm
 
ea.
9217365
3μm
150mm
4.6mm
 
ea.
9217332-700
3μm
30mm
2.1mm
with Trident Inlet Fitting
ea.
9217352-700
3μm
50mm
2.1mm
with Trident Inlet Fitting
ea.
9217312-700
3μm
100mm
2.1mm
with Trident Inlet Fitting
ea.
9217362-700
3μm
150mm
2.1mm
with Trident Inlet Fitting
ea.
9217333-700
3μm
30mm
3.2mm
with Trident Inlet Fitting
ea.
9217353-700
3μm
50mm
3.2mm
with Trident Inlet Fitting
ea.
9217313-700
3μm
100mm
3.2mm
with Trident Inlet Fitting
ea.
9217363-700
3μm
150mm
3.2mm
with Trident Inlet Fitting
ea.
9217335-700
3μm
30mm
4.6mm
with Trident Inlet Fitting
ea.
9217355-700
3μm
50mm
4.6mm
with Trident Inlet Fitting
ea.
9217315-700
3μm
100mm
4.6mm
with Trident Inlet Fitting
ea.
9217365-700
3μm
150mm
4.6mm
with Trident Inlet Fitting
ea.
9217531
5μm
30mm
1.0mm
 
ea.
9217551
5μm
50mm
1.0mm
 
ea.
9217511
5μm
100mm
1.0mm
 
ea.
9217561
5μm
150mm
1.0mm
 
ea.
9217521
5μm
200mm
1.0mm
 
ea.
9217571
5μm
250mm
1.0mm
 
ea.
9217532
5μm
30mm
2.1mm
 
ea.
9217552
5μm
50mm
2.1mm
 
ea.
9217512
5μm
100mm
2.1mm
 
ea.
9217562
5μm
150mm
2.1mm
 
ea.
9217522
5μm
200mm
2.1mm
 
ea.
9217572
5μm
250mm
2.1mm
 
ea.
9217533
5μm
30mm
3.2mm
 
ea.
9217553
5μm
50mm
3.2mm
 
ea.
9217513
5μm
100mm
3.2mm
 
ea.
9217563
5μm
150mm
3.2mm
 
ea.
9217523
5μm
200mm
3.2mm
 
ea.
9217573
5μm
250mm
3.2mm
 
ea.
9217535
5μm
30mm
4.6mm
 
ea.
9217555
5μm
50mm
4.6mm
 
ea.
9217515
5μm
100mm
4.6mm
 
ea.
9217565
5μm
150mm
4.6mm
 
ea.
9217525
5μm
200mm
4.6mm
 
ea.
9217575
5μm
250mm
4.6mm
 
ea.
9217532-700
5μm
30mm
2.1mm
with Trident Inlet Fitting
ea.
9217552-700
5μm
50mm
2.1mm
with Trident Inlet Fitting
ea.
9217512-700
5μm
100mm
2.1mm
with Trident Inlet Fitting
ea.
9217562-700
5μm
150mm
2.1mm
with Trident Inlet Fitting
ea.
9217522-700
5μm
200mm
2.1mm
with Trident Inlet Fitting
ea.
9217572-700
5μm
250mm
2.1mm
with Trident Inlet Fitting
ea.
9217533-700
5μm
30mm
3.2mm
with Trident Inlet Fitting
ea.
9217553-700
5μm
50mm
3.2mm
with Trident Inlet Fitting
ea.
9217513-700
5μm
100mm
3.2mm
with Trident Inlet Fitting
ea.
9217563-700
5μm
150mm
3.2mm
with Trident Inlet Fitting
ea.
9217523-700
5μm
200mm
3.2mm
with Trident Inlet Fitting
ea.
9217573-700
5μm
250mm
3.2mm
with Trident Inlet Fitting
ea.
9217535-700
5μm
30mm
4.6mm
with Trident Inlet Fitting
ea.
9217555-700
5μm
50mm
4.6mm
with Trident Inlet Fitting
ea.
9217515-700
5μm
100mm
4.6mm
with Trident Inlet Fitting
ea.
9217565-700
5μm
150mm
4.6mm
with Trident Inlet Fitting
ea.
9217525-700
5μm
200mm
4.6mm
with Trident Inlet Fitting
ea.
9217575-700
5μm
250mm
4.6mm
with Trident Inlet Fitting
ea.

Application-dedicated HPLC columns have longer lifetimes

Prolong the useful lifetimes of your HPLC columns by dedicating specific columns to specific applications, like analysts who use ion pair reagents often do. Sample components, mobile phase conditions, etc. can cause changes within a column, and sometimes effects of these changes are negligible until the column is used in another application. Although this practice can involve using more columns at one time, and calls for careful bookkeeping, longer lifetimes for individual columns can amount to significant savings.

Avoid the Void Volume

A speedy analysis is important, but avoid the temptation to elute important sample components near the void volume of your column. When you ignore this guideline, you are locked into using the mobile phase as the sample solvent; any admixing of sample solvent and mobile phase causes a baseline disturbance that makes quantification highly unreliable. Also, it is highly likely that the peak at the void volume will soar off-scale. You will avoid these and other potential problems by adjusting conditions such that the first target compound elutes with a capacity factor (k′) of at least 2.0.