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Catalog #Particle SizeLengthIDUnits
Catalog #
9160532
Particle Size
5 μm
Length
30 mm
ID
2.1 mm
Units
ea.
Catalog #
9160552
Particle Size
5 μm
Length
50 mm
ID
2.1 mm
Units
ea.
Catalog #
9160512
Particle Size
5 μm
Length
100 mm
ID
2.1 mm
Units
ea.
Catalog #
9160562
Particle Size
5 μm
Length
150 mm
ID
2.1 mm
Units
ea.
Catalog #
9160522
Particle Size
5 μm
Length
200 mm
ID
2.1 mm
Units
ea.
Catalog #
9160572
Particle Size
5 μm
Length
250 mm
ID
2.1 mm
Units
ea.
Catalog #
916053E
Particle Size
5 μm
Length
30 mm
ID
3.0 mm
Units
ea.
Catalog #
916055E
Particle Size
5 μm
Length
50 mm
ID
3.0 mm
Units
ea.
Catalog #
916051E
Particle Size
5 μm
Length
100 mm
ID
3.0 mm
Units
ea.
Catalog #
916056E
Particle Size
5 μm
Length
150 mm
ID
3.0 mm
Units
ea.
Catalog #
916052E
Particle Size
5 μm
Length
200 mm
ID
3.0 mm
Units
ea.
Catalog #
916057E
Particle Size
5 μm
Length
250 mm
ID
3.0 mm
Units
ea.
Catalog #
9160535
Particle Size
5 μm
Length
30 mm
ID
4.6 mm
Units
ea.
Catalog #
9160555
Particle Size
5 μm
Length
50 mm
ID
4.6 mm
Units
ea.
Catalog #
9160515
Particle Size
5 μm
Length
100 mm
ID
4.6 mm
Units
ea.
Catalog #
9160565
Particle Size
5 μm
Length
150 mm
ID
4.6 mm
Units
ea.
Catalog #
9160525
Particle Size
5 μm
Length
200 mm
ID
4.6 mm
Units
ea.
Catalog #
9160575
Particle Size
5 μm
Length
250 mm
ID
4.6 mm
Units
ea.
Chromatogram
Compounds
Description
Specifications
Tech Tips

Boost signal-to-noise and sensitivity

For greatest signal-to-noise ratio and highest sensitivity in LC/MS methods, use maximum retentive HPLC phases, such as the Allure family of packings. With these phases, stronger mobile phase solvents containing less aqueous content can be used. This increases the efficiency of gas phase analyte ion generation from the condensed phase, thereby increasing sensitivity.

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.
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