Solid-phase chelation for the determination of trace elements by ICP-MS
- Duquesne Univ., Pittsburgh, PA (United States)
A low pressure method for the concentration of analytes and elimination of matrix elements prior to determination by ICP-MS is described. The method reduces the interferences caused by high concentrations of matrix elements in samples and biases caused by differences between samples and standards by delivering the analytes to the ICP-MS in a consistent nitric acid matrix. The method uses a commercially available low pressure sample manipulation system (PrepLab, Fisons) to perform Solid Phase Chelation (SPC) on an iminodiacetate column. The effectiveness of the method is demonstrated for the determination of Cd, Co, Cu, Mn, Ni, Pb, U, and Zn in the certified reference materials CASS-2, near shore seawater, NASS-4, open ocean seawater, and 1643b, trace elements in water. The detection limits for 10 mL samples ranged from 0.4 ng L{sup -1} for Co to 5.6 ng L{sup -1} for Ni and Zn.
- OSTI ID:
- 466553
- Report Number(s):
- CONF-951017--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Flow injection with ICP-AES and ICP-MS detection for environmental samples
Data trend shifts induced by method of concentration for trace metals in seawater: Automated online preconcentration vs. borohydride reductive coprecipitation of nearshore seawater samples for analysis of Ni, Cu, Zn, Cd, and Pb via ICP‐MS