Solid Phase Extraction
Waters Corp DisQuE AOAC Method Sample Preparation Kit, Tubes
DisQuE Dispersive Sample Preparation used for QUECHERS Method AOAC Method 2007.01. The kit consists of 100 units each of extraction tubes and clean-up tubes. Each 50 mL DisQuE Extraction tube contains 6 grams of magnesium sulphate and 1.5 grams of sodium acetate. Each 2 mL DisQuE Clean-Up tube contains 150 mg of magnesium sulphate and 50 mg PSA (primary-secondary amine SPE sorbent). Detailed method instructions are included with the kit. QUECHERS (pronounced catchers) methods are used for multi-pesticide residue analyses in food.
Waters Corp Sep-Pak Cyanopropyl (CN) 3 cc Vac Cartridge, 200 mg Sorbent per Cartridge, 55 - 105 µm, 50/pk
Silica-based polar bonded phase; can be used as less polar alternative to silica in normal-phase applications or as less hydrophobic alternative to C18 or C8 in reversed-phase applications; typical applications include drug metabolites and pesticides.
Waters Corp Sep-Pak C8 6 cc Vac Cartridge, 1 g Sorbent per Cartridge, 37 - 55 µm, 30/pk
Silica-based bonded phase with moderate hydrophobicity; use for methods requiring less retention than C18; typical applications include drugs and their metabolites in serum, plasma or urine, peptides in serum, plasma.
Waters Corp Sep-Pak Silica 3 cc Vac Cartridge, 200 mg Sorbent per Cartridge, 55 - 105 µm, 50/pk
A polar stationary phase, used primarily to adsorb analytes from non-polar solvents like hydrocarbons, chloro- or fluoro-substituted hydrocarbons or less polar esters and ethers. Analyte retention can occur through hydrogen bonding, dipole-dipole interactions or in aqueous samples through cation-exchange.
Waters Corp Sep-Pak Aminopropyl (NH2) 6 cc Vac Cartridge, 500 mg Sorbent per Cartridge, 55 - 105 µm, 30/pk
Sep-Pak Amino Propyl (NH2) Vac cartridges contain a moderately polar, silica-based bonded phase with weakly basic surface. The sorbent can be used as a polar sorbent with different selectivity for acidic/basic analytes or as a weak anion exchanges in aqueous medium below pH 8. Applications include extraction of phenols and phenolic pigments, petroleum fractionation, saccharides and drugs and metabolites. These syringe-barrel-type cartridges are designed for use with vacuum manifolds and automated SPE instruments.
Waters Corp Oasis Method Development 96-well µElution Plate, 2 mg Sorbent per Well, 30 µm, 1/pk
The Oasis Method Development µElution Plate is specifically designed to take the guesswork out of SPE method development. The patented 96-well plate format contains 3 rows each of the four Oasis mixed-mode, ion-exchange chemistries: strong and weak anion exchangers (MAX and WAX) and strong and weak cation exchangers (MCX and WCX). Sample preparation method development can be quickly and easily achieved with the use of only two SPE protocols. The Oasis µElution Sorbent Selection plate is compatible with most liquid-handling robotic systems for automated, high throughput SPE.