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Discovery DPA-6S SPE Tube, bed wt. 2 g, volume 20 mL, pk of 20

Code: 52631-U D2-231

General description

Retention Mechanism: Reversed-phaseSample Matrix Compatibility: Aqueous or methanolic solutions• Polyamide Resin: Partic...

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List Price

General description

Retention Mechanism: Reversed-phaseSample 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

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Discovery is a registered trademark of Sigma-Aldrich Co. LLC

materialPE frit (20 µm)
materialpolypropylene
compositionbed wt., 2 g
Featured IndustryFood and Beverages
pH-range4.5 - 7.5 (surface pH)
matrixpolyamide resin base material
Quality Level100
particle size50-160 µm
bulk density0.2‑0.3 g/mL
volume20 mL
separation techniquereversed phase
matrix active groupamide, poly- phase
impurities≤5% Water content
packagingpk of 20