Normal Phase Neutral Alumina (ALN) SPE Cartridges

Description

Description of Normal Phase Neutral Alumina (ALN) SPE Cartridges

Neutral alumina (ALN) solid phase extraction (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 Normal Phase 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

Parameters

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

Application

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

Specification	Maximum Sample Load	Volume	Minimum Elution Volume
50-100mg	2.5mg-5mg	1mL	100-200μL
100-200mg	5mg-10mg	3mL	200-500μL
200mg-1g	10mg-50mg	6mL	500μL-6mL
500mg-2g	25mg-100mg	12mL	3mL-10mL

Ordering Information

Item No.	Specification	Package (pcs/pk)
SLSPE1001ALA	Alumina, pH: 4.0, 50-100μm, 100mg/1mL	100
SLSPE2003ALA	Alumina, pH: 4.0, 50-100μm, 200mg/3mL	50
SLSPE5003ALA	Alumina, pH: 4.0, 50-100μm, 500mg/3mL	50
SLSPE5006ALA	Alumina, pH: 4.0, 50-100μm, 500mg/6mL	30
SLSPE1K6ALA	Alumina, pH: 4.0, 50-100μm, 1g/6mL	30
SLSPE1K12ALA	Alumina, pH: 4.0, 50-100μm, 1g/12mL	20
SLSPE2K12ALA	Alumina, pH: 4.0, 50-100μm, 2g/12mL	20
SLSPE1001ALB	Alumina, pH: 9.5, 50-100μm, 100mg/1mL	100
SLSPE2003ALB	Alumina, pH: 9.5, 50-100μm, 200mg/3mL	50
SLSPE5003ALB	Alumina, pH: 9.5, 50-100μm, 500mg/3mL	50
SLSPE5006ALB	Alumina, pH: 9.5, 50-100μm, 500mg/6mL	30
SLSPE1K6ALB	Alumina, pH: 9.5, 50-100μm, 1g/6mL	30
SLSPE1K12ALB	Alumina, pH: 9.5, 50-100μm, 1g/12mL	20
SLSPE2K12ALB	Alumina, pH: 9.5, 50-100μm, 2g/12mL	20
SLSPE1001ALN	Alumina, pH: 7.0, 50-100μm, 100mg/1mL	100
SLSPE2003ALN	Alumina, pH: 7.0, 50-100μm, 200mg/3mL	50
SLSPE5003ALN	Alumina, pH: 7.0, 50-100μm, 500mg/3mL	50
SLSPE5006ALN	Alumina, pH: 7.0, 50-100μm, 500mg/6mL	30
SLSPE1K6ALN	Alumina, pH: 7.0, 50-100μm, 1g/6mL	30
SLSPE1K12ALN	Alumina, pH: 7.0, 50-100μm, 1g/12mL	20
SLSPE2K12ALN	Alumina, pH: 7.0, 50-100μm, 2g/12mL	20