CHROMABOND HR-XA

CHROMABOND® HR-XA
Strong quat. ammonium modified polymeric anion exchanger for SPE

Features
	Base material spherical PS/DVB copolymer, pore size 55–65 Å, particle sizes 45 µm or 85 µm (standard), very large specific surface 850 m2/g, pore volume 1.4 cm3/g, pH stability 1–14 quaternary ammonium modification, exchange capacity 0.25 meq/g, pKa ~ 18 RP capacity 350 mg/g (caffeine in water) high-purity material, highest reproducibility and lowest blank values due to an optimized production process outstanding recovery rates especially for the enrichment of acidic analytes for standard protocol see application 304970
	Recommended application: acidic active ingredients from strongly matrix-contaminated samples like, e.g., urine, plasma, serum (see application 305000) phenolic acids acidic herbicides acids with pKa 2–8 For more applications click here.

Ordering information
	Volume	Adsorbent weight						Pack of
	CHROMABOND® HR-XA polypropylene columns (85 µm)
		30 mg	60 mg	100 mg	150 mg	200 mg	500 mg
	1 mL	730968		730727				30
	3 mL		730950			730951	730954	30
	6 mL				730958		730966	30
	CHROMABOND® HR-XA polypropylene columns (45 µm) NEW!
		30 mg	60 mg	100 mg		200 mg
	1 mL	730968P45		730727P45				30
	3 mL		730950P45			730951P45		30
	CHROMAFIX® HR-XA cartridges (85 µm)
	Size Adsorbent weight (average)		S 155 mg		M 240 mg		L 500 mg
			731768		731769		731770	50
	CHROMABOND® HR-XA adsorbent (85 µm)
							730671	100 g
Glass columns, LV columns and MULTI 96 on request