Ultra-trace determination of iodine in sediments and biological material using UV photochemical generation-inductively coupled plasma mass spectrometry

Download
  1. Get@NRC: Ultra-trace determination of iodine in sediments and biological material using UV photochemical generation-inductively coupled plasma mass spectrometry (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.sab.2009.01.013
AuthorSearch for: ; Search for:
TypeArticle
Journal titleSpectrochimica Acta Part B: Atomic Spectroscopy
ISSN0584-8547
Volume64
Issue3
Pages235241; # of pages: 7
SubjectIodine; ICP-MS; UV-photochemical generation
AbstractSeveral sample preparation techniques have been evaluated for the determination of iodine using UV-photochemical generation-quadrupole inductively coupled plasma mass spectrometry. Thermal decomposition of samples at 1000 °C followed by capture of the liberated iodine in dilute acetic acid permitted subsequent UV-photochemical generation of a volatile iodine species that serves to enhance sensitivity 25-fold over conventional solution nebulization, delivering reagent blank detection limits of 8.75 pg g–¹ ¹² ⁷I and 0.075 pg g–¹ ¹²⁹I for solid samples (400 mg test mass). The methodology was validated through determination of total iodine in several Standard Reference Materials, including NIST 1572 Citrus leaves, NIST 1549 Non-fat milk powder, NIST 1566a Oyster tissue and NIST 2709 San Joaquin Soil. Liberation of iodine from samples and its collection as well as photochemical generation were quantitative, permitting calibration to be achieved using standards prepared in dilute acetic acid.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedYes
IdentifierS0584854709000263
NPARC number21277199
Export citationExport as RIS
Report a correctionReport a correction
Record identifier8730b086-1e06-43da-a005-763cb2de239c
Record created2016-01-05
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)