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
Specific surface area: >150 m²/g
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.
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