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816653 Supelco

TSKgel® OApak-A HPLC Column

phase carboxylic acid, L × I.D. 30 cm × 7.8 mm, 5 μm particle size



Related Categories Analytical/Chromatography, HPLC, HPLC & FPLC Columns for Biopolymer Separations, TSKgel HPLC Columns, TOYOPEARL Bulk Media & Accessories, TSKgel Speciality Columns More...
material   stainless steel
feature   counter ion H+
mfr. no.   Tosoh, 16653
parameter   ≤20% organic solvent
  0.8 mL/min flow rate
  10-60 °C temperature
  70 bar max. pressure
application(s)   HPLC: suitable
L × I.D.   30 cm × 7.8 mm
matrix   hydroxylated methacrylic polymer
matrix active group   carboxylic acid phase
particle size   5 μm
operating pH   2 - 12
separation technique   cation exchange


General description

TSKgel® OApak-A columns are packed with porous hydrophilic polymer beads which have been chemically modified with a weak cation exchanger. They are optimized for the separation and analysis of organic acids by an ion-exclusion mechanism.This column is to be used in conjunction with the TSKgel OApak-P guard column which has a strong cation exchanger for the removal of dissociated strong acids under the isocratic eluent conditions of 0.75mM H2SO4. Applications include: organic acids in fruit juices, wine, beer, coffee, and salt solutions.

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Legal Information

TSKgel is a registered trademark of Tosoh Corporation

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Certificate of Analysis

Milli-Q® Water Purification Solutions
Protocols & Articles


HPLC Analysis of Organic Acids Commonly Found in Wine and Beer on TSKgel® OApak-P and OApak-A

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Organic Acids Commonly Found in Wine and Beer on TSKgel® OApak-P and OApak-A
Keywords: Chromatography, High performance liquid chromatography

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816654 TSKgel® OApak-P Guard Column, phase sulphonic acid, L × I.D. 4 cm × 6 mm, 10 μm particle size

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