Normal Phase Neutral Alumina (ALN) SPE Cartridges

Highly active porous matrix with large adsorption capacity
Good retention of aromatic amine pesticides
Stable with silica gel in high pH solution


Description of Neutral Alumina (ALN) SPE Cartridges

Neutral alumina (ALN) SPE cartridge. Highly active porous alumina, the surface electrons of which form a pi-pi interaction with the aromatic ring, have strong polarity retention and Lewis acid properties. Compared to unbonded silica, alumina is more stable in high pH environments and is suitable for the extraction of aromatic amines.
Alumina has been specially treated to have three types of acidic (ALA) neutral (ALN) and basic (ALB), which can be matched to different target compounds.

Features of Neutral Alumina SPE Cartridges

Highly active porous matrix with large adsorption capacity
Good retention of aromatic amine pesticides
Stable in silica-bonded phase in high pH solution


Specific surface area: >150 m²/g
pH: 7.0


Analysis of amines, phenols, and glycosides in biological matrices such as catechol.
Detection of pesticides, veterinary drug residues, and contaminants in vegetables, fruits, and meat products, such as Sudan red, malachite green, and organophosphorus pesticides.
Detection of synthetic pigments in water.
Analysis of petroleum component.

Relevant Standards

GB/T 23816-2009 Determination of triazine herbicide residues in soybean
GB/T 19681-2005 Determination of Sudan red dyes in foods – high performance liquid chromatography
GB/T 20361-2006 Determination of malachite green and crystal violet residues in aquatic products by high performance liquid chromatography
Determination of malachite green in feed for NY/T 1756-2012


Technical Data

SpecificationMaximum Sample LoadVolumeMinimum Elution Volume

Ordering Information

Item   No. SpecificationPackage (pcs/pk)
SLSPE1001ALAAlumina, pH: 4.0, 50-100μm,   100mg/1mL100
SLSPE2003ALAAlumina, pH: 4.0, 50-100μm, 200mg/3mL50
SLSPE5003ALAAlumina, pH: 4.0, 50-100μm, 500mg/3mL50
SLSPE5006ALAAlumina, pH: 4.0, 50-100μm, 500mg/6mL30
SLSPE1K6ALAAlumina, pH: 4.0, 50-100μm, 1g/6mL30
SLSPE1K12ALAAlumina, pH: 4.0, 50-100μm, 1g/12mL20
SLSPE2K12ALAAlumina, pH: 4.0, 50-100μm, 2g/12mL20
SLSPE1001ALBAlumina, pH: 9.5, 50-100μm, 100mg/1mL100
SLSPE2003ALBAlumina, pH: 9.5, 50-100μm, 200mg/3mL50
SLSPE5003ALBAlumina, pH: 9.5, 50-100μm, 500mg/3mL50
SLSPE5006ALBAlumina, pH: 9.5, 50-100μm, 500mg/6mL30
SLSPE1K6ALBAlumina, pH: 9.5, 50-100μm, 1g/6mL30
SLSPE1K12ALBAlumina, pH: 9.5, 50-100μm, 1g/12mL20
SLSPE2K12ALBAlumina, pH: 9.5, 50-100μm, 2g/12mL20
SLSPE1001ALNAlumina, pH: 7.0, 50-100μm, 100mg/1mL100
SLSPE2003ALNAlumina, pH: 7.0, 50-100μm, 200mg/3mL50
SLSPE5003ALNAlumina, pH: 7.0, 50-100μm, 500mg/3mL50
SLSPE5006ALNAlumina, pH: 7.0, 50-100μm, 500mg/6mL30
SLSPE1K6ALNAlumina, pH: 7.0, 50-100μm, 1g/6mL30
SLSPE1K12ALNAlumina, pH: 7.0, 50-100μm, 1g/12mL20
SLSPE2K12ALNAlumina, pH: 7.0, 50-100μm, 2g/12mL20
Enter your email address and our sales staff will contact you as soon as possible.

    Go to Top