University of North Florida
Browse the Citations
-OR-

Contact Info

Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

View Stuart Chalk's profile on LinkedIn

IAEA 356

Classification: Reference Material -> IAEA -> 356

Citations 1

"Determination Of Total Mercury In Sediments By Microwave-assisted Digestion - Flow Injection Inductively Coupled Plasma Mass Spectrometry"
J. Anal. At. Spectrom. 1997 Volume 12, Issue 1 Pages 53-56
ÁGNES WOLLER, HERVÉ GARRAUD, FABIENNE MARTIN, OLIVIER F. X. DONARD and PÉTER FODOR

Abstract: Dry sediment (0.25 g) was digested in an open vessel with 8 mL of HNO3 and again after cooling for 5 min and addition of 2 mL of 30% H2O2, in both instances at 20 W for 5 min. The digest was then diluted with water to the required concentration range of Hg; 5 mL portions of the analytical solution contained 0.1% of Triton X-100, 0.1% of EDTA, 0.1% (v/v) of aqueous NH3, 20 ng/ml of Tl (internal standard), and standard additions of 0-40 ng of Hg. The analysis was based on the ICP-MS detection of 202Hg, while 200Hg was detected for confirmation. The detection limit was 1 ng/g. Recoveries were 95-105%, and results for the reference materials PACS-1, IAEA-356 and S19 agreed well with the certified values.
Mercury Mass spectrometry Sample preparation Reference material Triton X Standard additions calibration Surfactant