美國戴安Dionex OmniPac PAX-500 Multimode Column 042153 液相色譜柱
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產品名稱: 美國戴安Dionex OmniPac PAX-500 Multimode Column 042153 液相色譜柱
產品型號: OmniPac PAX-500 042153
產品展商: 戴安Dionex
產品文檔: 無相關文檔
簡單介紹
戴安公司生產的儀器主要有離子色譜儀、高效液相色譜儀、快速溶劑萃取儀和氨基酸直接分析儀。其中離子色譜儀憑借著雄厚的技術優勢和方法已廣泛地應用于各個領域，其市場占有率達80%。全球與離子色譜相關的文章有90%均出自戴安公司生產的離子色譜儀。
戴安公司的快速溶劑萃取儀15分鐘之內僅用15毫升溶劑既可完成對10g樣品的萃取，該技術已在環境、**、食品和聚合物工業等領域得到廣泛應用。
美國戴安Dionex OmniPac PAX-500 Multimode Column 042153 液相色譜柱
的詳細介紹
OmniPac PAX-500 Multimode Column
The OmniPac? PAX-500 column is a macroporous,
low-capacity, solvent-compatible column designed to separate anionic and
neutral species in a single run. This column combines both
anion-exchange and polymeric reversed-phase retention mechanisms in a
single column.
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Good for the simultaneous separation of neutral and anionic species
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Unique selectivity for polar and ionic organic analytes
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Effective for biological samples such as purines, pyrimidines, and vitamins
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Good for drugs and pharmaceuticals
The
multimode separation mechanism of the OmniPac PAX-500 is achieved by
coating a macroporous, hydrophobic core for reversed-phase retention,
with an anion-exchange latex bead layer for anion-exchange retention.
The macroporous structure provides an accessible hydrophobic core where
reversed-phase retention occurs. The anion-exchange selectivity is
provided by an anion-exchange MicroBead? latex that coats the
hydrophobic core. Since the anion-exchange layer is identical to that
of the OmniPac PAX-100, the two columns exhibit similar ion-exchange
selectivity. As a result, the OmniPac PAX-100 can be used to develop the
ion-exchange separation and the method can then be transferred to the
OmniPac PAX-500 for refinement to include the reversed-phase separation.
The OmniPac PAX-500 column is 100% solvent compatible and should always
be run with at least 1% organic solvent in the mobile phase to maintain
column life.
The OmniPac PAX-500 may be used for the separation
of compounds such as alcohols, alkanolamines, antihistamines,
anti-inflammatory agents, aromatic acids, inorganic acids, peptides,
purines and pyrimidines, sulfonamides, sulfonated anionic surfactants,
and water-soluble vitamins.
技術參數：
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OmniPac PAX-500 Multimode Column Specifications
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Dimensions
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OmniPac PAX-500 Analytical Column:
4 × 250 mm
OmniPac PAX-500 Guard Column:
4 × 50 mm
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Maximum operating pressure
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4000 psi (27.9 MPa)
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Recommended operating temperature
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Ambient
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Typical operating conditions
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1.0 mL/min with at least 1% organic solvent
Recommended flow rate: 1.0 mL/min
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Mobile phase compatibility
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100% compatible with common organic solvents.
Recommended eluents: solvent for reversed-phase, anion, such as Cl– or OH– for anion-exchange.
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Resin composition
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8.5-μm-diameter
ethylvinylbenzene/divinylbenzene macroporous substrate (55%
cross-linked) agglomerated with 60-nm MicroBead alkanolquaternary
amine-functionalized latex (4% cross-linked).
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Anion-exchange capacity
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Approximately 40 μeq/column (4 × 250 mm analytical column)
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Column construction
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PEEK with 10-32 threaded ferrule-style end fittings.
All components are nonmetallic.
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訂購信息：
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Analytical Columns
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OmniPac PAX-500 Analytical Column (4 x 250 mm)
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042152
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Guard Columns
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OmniPac PAX-500 Guard Column (4 x 50 mm)
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042153
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