 |
| Abstract: | An accelerated solvent extraction (ASE) device was evaluated as a semi-automated means for extracting arsenicals from quality control (QC) samples and DORM-2 [standard reference material (SRM)]. Unlike conventional extraction procedures, the ASE requires that the sample be dispersed in an inert dispersion media prior to the extraction. The need to disperse the sample in a support matrix prior to extraction is demonstrated by a 58% reduction in the extraction efficiency of arsenic (As Extraction Efficiency) from DORM-2 if the sample is not homogeneously suspended in the dispersion media. |
|
| Citation: | Gallagher, P. A., J. T. Creed, C. A. Schwegel, S. Murray, and X. Wei. An Evaluation of Sample Dispersion Medias Used With Accelerated Solvent Extraction for the Extraction and Recovery of Arsenicals from Lfb and Dorm-2. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 17(6):581-586, (2002). |
|
|
| Contact: |
Mary P. O'Bryant - (919)-541-4871 or obriant.mary@epa.gov
|
|
| Division: |
Microbiological & Chemical Exposure Assessment Division |
|
| Branch: |
Chemical Exposure Research Branch |
|
| Product Type: |
Journal |
|
| Published: |
05/27/2002 |
|
