52631-U
Discovery® DPA-6S SPE Tube
bed wt. 2 g, volume 20 mL, pk of 20
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About This Item
UNSPSC Code:
41115712
NACRES:
NB.21
material
PE frit (20 μm)
polypropylene
Quality Level
composition
bed wt., 2 g
packaging
pk of 20
technique(s)
solid phase extraction (SPE): suitable
volume
20 mL
impurities
<5% Water content
matrix
polyamide resin base material
matrix active group
amide, poly- phase
particle size
50-160 μm
pH range
4.5-7.5(surface pH)
bulk density
0.2‑0.3 g/mL
application(s)
food and beverages
separation technique
reversed phase
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General description
Retention Mechanism: Reversed-phase
Sample Matrix Compatibility: Aqueous or methanolic solutions
Sample Matrix Compatibility: Aqueous or methanolic solutions
- Polyamide Resin: Particle Size: 50-160μm, Surf pH: 4.5-7.5, Density: 0.2-0.3 cm3/g, Water Content: < 5 %
- Used to adsorb polar compounds (-OH groups, esp. phenolic compounds) from aqueous or methanolic solutions under the reversed-phase mechanism through strong hydrogen bonding between compound hydroxyl groups and amide groups of the resin
- Useful for extracting tannins, chlorophyll, humic acid, pharmacologically active terpenoids, flavanoids, gallic acid, catechol A, protocatechuic acid, and phloroglucinol
- Also useful for extracting aromatic carboxylic acids and nitroaromatic compounds
- Irreversibly retains quinones
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Takayuki Asada et al.
Food chemistry, 166, 10-16 (2014-07-24)
An aluminium complex of crude Delaware grape anthocyanins, bearing an ortho-dihydroxyl group on the B ring and/or a p-coumaroyl group as an ester with flavocommelin, was formed and isolated by ethanol precipitation. Using a Discovery DPA-6S short column, selected anthocyanins
Takayuki Asada et al.
Journal of chromatography. A, 1351, 21-28 (2014-06-04)
Isolation techniques for anthocyanidin 3,5-diglucosides and their derivatives from three types of supramolecular pigments were newly developed using two SPE (Discovery DPA-6S and DSC-SCX) cartridges. Initially, malonylawobanin from commelinin supramolecular complex yielded 79.5% with 85.7% purity using DPA-6S, while DSC-SCX
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