Interlaboratory Evaluation of an Extraction and Fluorescence Method for the Determination of Trace Beryllium in Soils

Details

• Personal Author:
  Adams L ; Agrawal, Anoop ; Ashley, Kevin E. ; Brisson MJ ; Cronin JP ; Marlow D ; Tonazzi JC ; White KT
• Description:
  Analytical methods for the determination of trace beryllium in soils are needed so that anthropogenic sources of this element can be distinguished from native (background) levels of beryllium. In this work, a collaborative interlaboratory evaluation of a new extraction and fluorescence-based procedure for determining beryllium in soil samples was carried out to fulfil method validation requirements for ASTM International voluntary consensus standard test methods. A Canadian reference material, CCRMP Till-1 soil, with a background beryllium concentration of 2.4 microg g(-1), was selected for study. This certified reference material (CRM) was spiked and homogenized with varying levels of beryllium oxide in order to give batches of material with beryllium concentrations of 4.36 +/- 0.69, 11.5 +/- 0.7, 124 +/- 7 and 246 +/- 16 microg g(-1) (+/- values are standard deviations). In the interlaboratory study (ILS), which was carried out in accordance with an applicable ASTM International standard practice (ASTM E691), samples of these spiked soils were subjected to extraction in dilute ammonium bifluoride at approximately 90 degrees C for 40 h. Fluorescence measurement of the extracted beryllium was carried out via detection using the high quantum yield fluorophore, hydroxybenzoquinoline sulfonate (HBQS). Interlaboratory precision estimates from six participating laboratories ranged from 0.048 to 0.103 (relative standard deviations) for the five different beryllium concentrations. Pooled bias estimates resulting from this ILS were between -0.049 and 0.177 for the various beryllium levels. These figures of merit support promulgation of the analytical procedure as an ASTM International standard test method. [Description provided by NIOSH]
• Subjects:
  Beryllium Chemistry Chemistry, Analytic Occupational Health Safety
• Keywords:
  Analytical-chemistry Analytical-methods Analytical-processes Beryllium-compounds
• ISSN:
  1464-0325
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  10
• Issue:
  8
• NIOSHTIC Number:
  nn:20034237
• Citation:
  J Environ Monit 2008 Aug; 10(8):955-960
• Contact Point Address:
  Berylliant, Inc, 4541 E Fort Lowell Road, Tucson, AZ 85712, USA
• CAS Registry Number:
  Beryllium (CAS RN 7440-41-7) ; Beryllium oxide (CAS RN 1304-56-9)
• Federal Fiscal Year:
  2008
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Environmental Monitoring
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3cd084af6c0a778345671a0a64fb21ced1d8cb74f46e62017adc7964ba6fc5f6fea7ded44069dfdddecb348fa64e9fbf943e02d7499c9a0b86e7247f19b953a5
• Download URL:
  https://stacks.cdc.gov/view/cdc/189534/cdc_189534_DS1.pdf
• File Type:
  [PDF - 142.92 KB ]