Determination of total chromium in Marine Sediment Reference Material BCSS-1

Download
  1. Get@NRC: Determination of total chromium in Marine Sediment Reference Material BCSS-1 (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1007/s0021663560416
AuthorSearch for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleFresenius' Journal of Analytical Chemistry
ISSN0937-0633
Volume356
IssueDecember 7
Pages416419; # of pages: 4
AbstractThe determination of Cr in National Research Council of Canada Marine Sediment Reference Material BCSS-1 is addressed. Mixed acid digestions utilizing HF, HClO4 and HNO3 were investigated. Single microwave assisted digestions in closed vessels at medium pressures (8 bar) were inappropriate (80% recovery). Double digestion at moderate pressure and digestions at high pressure (70 bar) or lengthy open-beaker hot plate dissolutions resulted in 93±5% recovery of certified Cr content. Flame atomic absorption and inductively coupled plasma atomic emission spectrometry were used for quantitation. In all cases, the method of standard additions was necessary to eliminate the approximately 10% enhancement in re- sponce relative to unmatched standards. Compared to a certified content of 123±7 μg/g (mean and standard deviation), values of 116±6 were obtained using an open beaker digestion; 114±5 using a double microwave digestion at 8 bar; 113±2 for microwave digestion at high pressure and 111±4 at high pressure (81 bar) with triple microwave digestion in a Parr bomb. No acid dissolution procedure is adequate for Cr in this sample although recovery of total Cr is complete from National Institute of Standards and Technology Buffalo River Sediment (SRM 2704).
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for National Measurement Standards
Peer reviewedNo
Identifier10467853
NRC number1274
NPARC number5765117
Export citationExport as RIS
Report a correctionReport a correction
Record identifieraefe455e-465c-40ed-a3be-62f867ec147d
Record created2009-03-29
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)