Flow injection with ICP-AES and ICP-MS detection for environmental samples
- Univ. of Plymouth (United Kingdom)
Flow injection as a means of sample introduction is recognized to have a number of advantages including low cost, simplicity, and ease of automation. It is also a useful approach when only a limited amount of sample is available and can be used for the analysis of matrices with high dissolved solids to prevent blockage of the torch or the nebuliser when using ICP-AES or ICP-MS. In other modes, samples may be pre-concentrated on micro-columns of exchange media whilst matrix interferences are removed simultaneously. The analytes may then be eluted from the column in a discrete slug of eluent and be presented for detection. These advantages will be demonstrated by applying flow injection to the analysis of a number of environmental samples. Examples will include the analysis of solid materials for analytes such as Cu, Cd, W, Pb, V and Zn using a resin with iminodiacetic acid functional groups and for the determination of As, Cr, Se and V using a micro-column of activated alumina. The use of chelating resins will also be discussed with particular reference to the analysis of sea and estuarine waters for the analytes Co, Cu, Mn, Ni, Pb and Zn. Again, preconcentration and matrix elimination will be highlighted. In all cases, experimental details, limits of detection, precision, recovery data and results from the analysis of CRM`s will be reported.
- OSTI ID:
- 466527
- Report Number(s):
- CONF-951017--
- Country of Publication:
- United States
- Language:
- English
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