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Merck

56400AST

Supelco

apHera NH₂ (5 μm) HPLC Columns

L × I.D. 15 cm × 2 mm, HPLC Column

Sinónimos:

Amino Functionalized HPLC Column

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About This Item

UNSPSC Code:
41115700
eCl@ss:
32110501
NACRES:
SB.52

product name

Columna para HPLC apHera NH2, 5 μm particle size, L × I.D. 15 cm × 2 mm

material

stainless steel column

agency

suitable for USP L82

product line

apHera

packaging

pkg of 1 ea

manufacturer/tradename

apHera

parameter

147 bar pressure (2133 psi)
4-50 °C temperature

technique(s)

HPLC: suitable
LC/MS: suitable

L × I.D.

15 cm × 2 mm

matrix

polymeric

matrix active group

amino phase

particle size

5 μm

pore size

300 Å

operating pH

1-14

application(s)

food and beverages

separation technique

hydrophilic interaction (HILIC)
normal phase

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General description

apHera amino columns are based on covalently bonded polyamine specifically optimized for the separation of mono- and oligosaccharides. The elution order mono-, di-, tri-saccharide shows increased eluton volume with increased acetonitrile concentration and complete stability for both acidic and alkaline eluates. The small, robust PVA copolymer bead provides mechanical and chemical strength as well as high column efficiency. Conventional camion columns based on silica do not show long column life, perhaps due to hydrolysis of silica particle by the basic amino group. Since Supelco uses a strong alkaline compatible polymer, these problems are eliminated. Stable retention time and long column life are also characteristic of the column.

Features of Amino apHera Columns
  • High efficiency for carbohydrate analysis
  • Ideal for basic conditions/amphoteric detection
  • High selectivity mono- to oligosaccharides
  • pH range 2-13
  • 300 angstrom pore size
  • Stable, predictable retention
  • Long column life

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Legal Information

apHera is a trademark of Sigma-Aldrich Co. LLC

guard column

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Visite la Librería de documentos

Marine de Person et al.
Journal of chromatography. A, 1081(2), 174-181 (2005-07-26)
A new procedure based on hydrophilic interaction chromatography coupled to tandem mass spectrometry (ionisation process by pneumatically assisted electrospray in negative ion mode), is developed and validated for the simultaneous determination of underivatised taurine and methionine in beverages rich in
Khin Than Myint et al.
Analytical chemistry, 81(18), 7766-7772 (2009-08-26)
We have developed a practical method for the comprehensive analysis of polar anionic metabolites in biological samples with the use of a nano-LC/MS system. A polyamine-bonded polymer-based apHera NH2 column, which is compatible with ammonium carbonate buffer, effectively retained anionic

Protocolos

LC/MS Analysis of Glyphosate and Metabolites on apHera™ NH2, 2 mm I.D. Column

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