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Collaborative Efforts for Creating a Robust Trace Metals Analytical Procedure for Flue Gas Desulfurization Wastewater by ICP-MS
Oral Presentation
Prepared by S. Smith1, E. Pruszkowski2
1 - Perkin Elmer, 2000 York Road, Oak Brook, IL, 60523
2 - Perkin Elmer, 75 Nicholson Lane, San Jose, CA, 95134
Contact Information: stan.smith@perkinelmer.com; 630-368-3481
ABSTRACT
The Unites States Environmental Protection Agency (EPA) continues to make progress toward promulgating regulations for the steam electric power generating industry. In particular, progress has been made in regards to creating and providing a robust analytical procedure for the analysis of flue gas desulfurization (FGD) wastewaters by Inductively Coupled Plasma – Mass Spectrometry (ICP-MS). Through collaborative efforts, the EPA, its contractors, and Perkin Elmer have created a detailed procedure for the analysis of this complex wastewater matrix.
FGD wastewater can be one of the most challenging sample types to analyze by ICP-MS instrumentation. This wastewater stream can be extremely acidic and saturated with high concentrations of calcium sulfate (e.g., gypsum), and may contain high concentrations of heavy metals, alkali earth metals, chlorides and dissolved organic compounds. With the very high total dissolved solids and metals concentrations, current EPA Methods such as 200.8 and 1638 are inadequate to address the interferences encountered. As such, cell based technologies including interference removal techniques such as collision mode and/or reaction mode are needed.
The procedure that will be discussed reflects the latest collaborative efforts and includes details on the entire analytical process from sample preparation, to instrument optimization, calibration, sample analysis, quality assurance procedures, and sample reporting. The entire procedure is geared specifically toward FGD wastewater and utilizes instrument accessories and analytical techniques to improve the analytical performance for this challenging matrix.
Oral Presentation
Prepared by S. Smith1, E. Pruszkowski2
1 - Perkin Elmer, 2000 York Road, Oak Brook, IL, 60523
2 - Perkin Elmer, 75 Nicholson Lane, San Jose, CA, 95134
Contact Information: stan.smith@perkinelmer.com; 630-368-3481
ABSTRACT
The Unites States Environmental Protection Agency (EPA) continues to make progress toward promulgating regulations for the steam electric power generating industry. In particular, progress has been made in regards to creating and providing a robust analytical procedure for the analysis of flue gas desulfurization (FGD) wastewaters by Inductively Coupled Plasma – Mass Spectrometry (ICP-MS). Through collaborative efforts, the EPA, its contractors, and Perkin Elmer have created a detailed procedure for the analysis of this complex wastewater matrix.
FGD wastewater can be one of the most challenging sample types to analyze by ICP-MS instrumentation. This wastewater stream can be extremely acidic and saturated with high concentrations of calcium sulfate (e.g., gypsum), and may contain high concentrations of heavy metals, alkali earth metals, chlorides and dissolved organic compounds. With the very high total dissolved solids and metals concentrations, current EPA Methods such as 200.8 and 1638 are inadequate to address the interferences encountered. As such, cell based technologies including interference removal techniques such as collision mode and/or reaction mode are needed.
The procedure that will be discussed reflects the latest collaborative efforts and includes details on the entire analytical process from sample preparation, to instrument optimization, calibration, sample analysis, quality assurance procedures, and sample reporting. The entire procedure is geared specifically toward FGD wastewater and utilizes instrument accessories and analytical techniques to improve the analytical performance for this challenging matrix.