Determination of transition and rare earth elements in seawater by flow injection inductively coupled plasma time-of-flight mass spectrometry
Resolve DOI: https://doi.org/10.1016/S0584-8547(01)00263-4
Search for: Willie, S. N.1; Search for: Sturgeon, R.1
National Research Council of Canada. NRC Institute for National Measurement Standards
inductively coupled plasma; time-of-flight mass spectrometry; trace elements; rare earth elements; flow injection; on-line separation and preconcentration; seawater
A method is presented for the quantitation of trace elements and rare earth elements (REE) in seawater by inductively coupled plasma orthogonal acceleration time-of-flight mass spectrometry. On-line separation and preconcentration was achieved using a timed flow-injection (FI) system incorporating a column containing iminodiacetate-based resin. The procedure was validated for selected transition elements by analysis of certified seawater reference materials NASS-5 and CASS-4. Recoveries of the rare earth elements (REE) from seawater were between 96 and 101%. Limits of detection (3s) were generally in the 20–50-pg l−1 range with nominal precision of 5–6% R.S.D. (n=5) when processing 50-ml sample aliquots of seawater. Sample throughput was 5 h−1 for the REE determinations and 15 h−1 for the transition elements of interest.
Spectrochimica Acta Part B: Atomic Spectroscopy 56, no. September 30 9 (30 September 2001): 1707–1716.
NRC-INMS-160
2f68562f-e20b-4ea8-8a20-f8b67c85f131