Thermo Fisher, 042151, OmniPac™ PAX-100 HPLC Columns

Name: OmniPac™ PAX-100 HPLC Columns
Brand: Thermo Fisher
SKU: 042151

Length (Metric): 50 mm, Unit Size: Each, For optimizing separations of hydrophobic and halogenated anions, use the Thermo Scientific™ OmniPac™ PAX-100 Column. This polymer-based anion-exchange column is solvent compatible and stable over the entire pH range of 1-14. Solvents may be used to affect selectivity, solubilize otherwise insoluble samples, and to remove contaminants to prolong column lifetime. The OmniPac PAX-100 column is particularly well suited for the analysis of larger organic acid

Catalog Number: 042151

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General

Flow Rate	1 mL/min
For Use With (Application)	Reversed Phase and Ion Exchange
Green Features	FSC
Max. Pressure	4000 psi (275 bar)
Packing Material	Spherical, Microporous Polymer
Particle Size	8.5 μm
Pore Size	60 Å
Quantity	Each
Stationary Phase	Alkanol Quaternary Amine
USP Type	L46
Column Type	Mixed Mode
Diameter (Metric)	4 mm
Length (Metric)	50 mm
pH	0 to 14
Unit Size	Each

FAQs

Question: What are the dimensions of this OmniPac PAX-100 column?

Answer:It is 4 mm internal diameter × 50 mm long.

Question: What separation mechanism does it use?

Answer:It is a mixed-mode polymer column combining anion-exchange and reversed-phase behavior.

Question: What pH range is supported?

Answer:The column is specified for pH 0–14.

Application Note

OmniPac™ PAX-100 HPLC Column, 4 × 50 mm is used for mixed-mode separations that combine anion-exchange and reversed-phase behavior, especially for hydrophobic and halogenated anions. The solvent-compatible stationary phase is built on an 8.5 µm microporous polymer substrate agglomerated with latex particles carrying alkanol quaternary amine functionality. The column is stable across pH 0–14 and can be operated with organic solvent in the mobile phase to modify selectivity, improve sample solubility, or clean retained contaminants. This 50 mm version provides a compact format for faster separations or method development. Typical applications include alkylbenzene sulfonates, aromatic acids, barbiturates, polyphosphates, inositol phosphates, thiocyanate, thiosulfate, and iodate. The column supports pressures up to 4000 psi.

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