The Separation of Beryllium from Selected Elements Using the Dipex^®Extraction Chromatographic Resin

Abstract

An extraction chromatographic resin containing the acidic chelating organophosphorus extractant, Dipex w , sorbed onto an inert polymeric substrate has been evaluated for the separation of beryllium from a wide range of elements. The elements selected comprise those which can interfere with the determination of beryllium by inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and matrix elements which commonly occur in environmental and industrial samples. Based on batch uptake measurements, a method that separates beryllium from all potential ICP-AES spectral interfering elements using a single extraction chromatographic column is outlined. The chromatographic parameters of the separation method have been optimized using simulated samples generated using the digestion process employed in beryllium analyses by the Y-12 National Security Complex and simulated ground water samples.

Separation of Be and Al for AMS using single-step column chromatography

“…Horwitz and McAlister [6] also suggested it might be possible to separate Al and Be on Beryllium resin at high nitric acid strengths, as Al-nitrate salts appear to be more strongly retained. Testing separations in concentrated HNO 3 separation can be achieved at nitric acid strengths between 11 and 12 M. When higher (>$3 mg) Al sample masses were tested, however, the column capacity became overloaded and Be eluted early, along with Al and other elements.…”

“…Initially we tested two elution schemes of Horwitz and McAlister [6] who showed the successful separation of Al and Be using a single 2 ml Beryllium resin column in 0.2 and 3 M nitric acid (their Figs. 6 and 11).…”

“…[2][3][4][5]). An extraction chromatographic resin (Beryllium resin, Eichrom Technologies LLC) has been developed to isolate Be from other metal ions and aid interference-free ICP (Inductively Coupled Plasma) measurements for environmental health and groundwater monitoring [6].…”

Determination of picomolar beryllium levels in seawater with inductively coupled plasma mass spectrometry following silica-gel preconcentration

“…USA) can selectively adsorb Be from acidified aqueous samples. Be Resin is potentially worthwhile for evaluation of seawater samples [23], though it is costly.…”