SPE columns, CHROMABOND HR-XCW, 45 µm, 3 mL/200 mg [AACU1-125ML][JMPRICES] Assurance® Grade Instrument Check Standard

Assurance® Grade Instrument Check Standard 3 for AA & ICP in 5% HCl

130 mm x 130 mm x 80 mm

Silver - Silver sulfide

VAR-CAL-1-125ML

Ethyl carbamate

SPE columns, CHROMABOND HR-XCW, 45 µm, 3 mL/200 mg [AACU1-125ML][JMPRICES] Assurance® Grade Instrument Check StandardState of the art spherical polymer for highest demands in solid phase extraction. PS DVB copolymer with carboxylic acid modification for mixed mode SPE with weak cation exchange and reversed phase properties (WCX). Exchange capacity > 0. 7 meq g, pKa ~ 5 and RP capacity 350 mg g (caffeine in water). High purity material with ideal flow properties and highest reproducibility. Allows highest reproducibility with extremely low blind values due to an