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form
suspension
Quality Level
shelf life
2 yr at −20‑0 °C
pH
~5
capacity
≥2 μmol/mL, gel (phosphopeptide)(following a 30 minute incubation at 25°C)
storage temp.
−20°C
General description
The PHOS-Select™ iron affinity gel is a novel iron [Fe(III)] chelate matrix. This matrix provides high capacity affinity binding of molecules containing phosphate groups.
Application
Phos-Select™ products facilitate a number of applications including:
- affinity enrichment of phosphopeptides obtained from protein tryptic digests
- direct transfer of phosphocompounds for analysis (HPLC or mass spectrometry)
- enrichment of phosphopeptides by immobilized metal affinity chromatography (IMAC)
Other Notes
Phos-Select™ Iron Affinity Gel is a novel iron [Fe(III)] chelate matrix based on Sigma′s NTA analog chelate ligand. The matrix provides high capacity affinity binding of molecules containing phosphate groups.
Physical form
aqueous glycerol suspension
Legal Information
PHOS-Select is a trademark of Sigma-Aldrich Co. LLC
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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