Columns for SPE "Presep®" series

Solid-phase extraction, which is used for pretreatment of samples, is extensively employed in various fields, such as pharmaceuticals, foods, and environmental analysis, due to its simplicity and minimal solvent requirement.​

It also has many advantages, including the ability to process multiple samples simultaneously in a short time.​

  • column_spe_presep_img01.png
    Presep®-C is both ends closed, cartridge type.​
  • column_spe_presep_img02.png
    Presep® Syringe is one end open type.​



Presep® series features​
  • Can be used in both pressurized and depressurized modes during solid-phase extraction.​
  • The type and amount of packing material can be customized, with the ability to connect several ​units depending on the purpose.​
    (use a connection adapter for syringe type)​
  • High flow speed due to the sharp particle size distribution of packing material.​
  • High recovery due to packing material designed for solid-phase extraction.​
  • High reproducibility due to strict quality control.​

Product Line-up

More Information

Presep® series packing material list

Column Name Packing Materials Particle diameter(μm) Applications, characteristics, etc.
C18(ODS) Octadecyl silane Silica gel 63 - 212 Reversed-phase partitioning: separation of hydrophobic substances in water-soluble samples.
NH2 Aminopropyl Silica gel 38 - 63 Removal of acidic compounds such as organic acids and fatty acids.
Silica gel Crushed Silica Gel 75 - 150 Normal-phase adsorption: separation of low- to middle-polarity components in non-aqueous solutions.
Alumina Basic Alumina (pH 9) 44 - 149 Removal of interfering substances in pesticides and environmental samples.
Florisil MgO3Si 75 - 150 Lipid removal, pretreatment of pesticide residues in foods.
Na2SO4 Sodium Sulfate Anhydrous - Dehydration
Diatomaceous Earth, Granular Diatomaceous Earth, Granular 500 - 1,400 Desolvation
Polyamide C-200 type M Polyamide resin 75 - 150 Pretreatment of paeoniflorin in Kakkonto extract.
RPP Styrene divinyl benzene polymethacrylate Resin 30、60 Trapping of high-polarity substances that cannot be adsorbed to normal ODS, pretreatment of biological sample.
RPP-SAX Basic Anion Exchange Resin (divinyl benzene polymethacrylate) 40 - 48 Selective extraction of acidic compounds, extraction of drugs or their metabolites from biological samples (urine, blood, etc.)
RPP-WAX 60

Quality control​

Our products are designed to minimize variability in quality through initiatives to improve reproducibility between lots. Packing volume, packing condition, basic performance, etc. are tested for general-purpose columns, and recovery of the target compound is tested for application-specific columns. Highly reproducible quality is maintained through these tests.​

Example of basic performance test​

Presep®-C Silica Gel

The product was connected to HPLC, and analysis was performed under the conditions shown below to confirm the packing status based on the peak shape.​ ​

column_spe_presep_img03.png
Eluent : n-Hexane / CHCN=99 /1 (v/v)
Flow Rate : 2.0 mL / min. at 35 ℃
Detection : UV 254nm 0.08 AUFS
Injection Vol. : 20 µL
Sample : 1) Toluene 2) Dimethyl Phthalate
 1) / 2) / n-Hexane=1 / 1 / 48 (v/v/v)

For research use or further manufacturing use only. Not for use in diagnostic procedures.

Product content may differ from the actual image due to minor specification changes etc.

If the revision of product standards and packaging standards has been made, there is a case where the actual product specifications and images are different.

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