Solid Phase Extraction Consumables

Copure SCX is a silica-based strong cation exchanger. Its pheylsulfonic acid ligand engenders strong cation exchange capacity, while the benzene ring gives rise to additional non-polar interactions. SCX is able to extract positively charged basic compounds such as amines.

Available in different formats.

Features

Low pKa, enabling strong interaction with basic compounds
Electrical charge of sulfonic acid changeable by adjusting pH of eluent, ensuing convenient eluting

Specifications

Surface area: 510 m²/g
Particle size: 40 - 75 μm
Pore size: 70 Å

Applications

Determination of residual pesticides / veterinary drugs in foodstuffs, such as macrolides
Determination of illicit drugs, such as amphetamine
Analysis of drugs and drug metabolites in biological matrices

Description

Copure SAX is a silica-based strong anion exchanger. Its quaternary ammonium ligand is always positively charged and engenders very strong anion exchange capacity. SAX is able to extract acidic compounds such as carboxylic acids.

Available in different formats.

Features

Very strong anion exchange interaction with acidic compounds
Capable of retaining compounds that elute from weak anion exchange sorbents
Simple retention mechanism, with minimal secondary interactions

Specifications

Surface area: 510 m ²/g
Particle size: 40 - 75 μm
Pore size: 70 Å

Applications

Removal of negatively charged substances such as organic acids, nucleotides, sulfonic acids and inorganic anions from samples
Determination of hormones in meat
Determination of sulfonylurea herbicides in soil, vegetables and cereals

Description

Copure NH ₂ sorbent is composed of aminopropyl-bonded silica gel. It retains analytes via strongly polar interactions in organic solutions and via weak anion exchange in aqueous solutions.

Available in different formats

Features

Retaining compounds in normal phase or anion exchange mode
Capable of cleaning up biological samples with complicated matrix components

Specifications

Carbon content: 4.5%
Surface area: 200 m ²/g
Particle size: 40 - 75 μm
Pore size: 100 Å

Applications

Removal of negatively charged species such as sulfuric acids
Determination of drugs and their metabolites such as β2-adrenergic agonists and salicylic acid in biological fluids (blood and urine)
Determination of macrolide residues in foods and water

Related Methods

NY/T 761-2008 Pesticide multiresidue sceen methods for determination of organophosphorus pesticides, organochlorine pesticides, pyrethroid pesticides and carbamate pesticides in vegetables and fruits.