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

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NIST 4351

Classification: Reference Material -> NIST -> 4351 -> Human lung

Citations 1

"Determination Of Actinide Elements At Femtogram Per Gram Levels In Environmental Samples By On-line Solid Phase Extraction And Sector-field-inductively Coupled Plasma-mass Spectrometry"
Anal. Chim. Acta 2001 Volume 433, Issue 2 Pages 245-253
Jason B. Truscott, Phil Jones, Ben E. Fairman and E. Hywel Evans

Abstract: An on-line solid phase extraction method has been developed for the determination of 232Th, 237Np, 238U, 239Pu, 240Pu, 241Am and 243Am in biological certified reference material using a column containing TRU-Spec™ resin coupled with sector-field inductively coupled plasma-mass spectrometry. Absolute detection limits were 0.7, 0.85, 0.6, and 0.65 fg for 237Np, 239Pu, 241Am and 243Am, respectively. The 239Pu was determined in NIST Human Liver (963±297 fg g-1 compared with a certified value of 848±161 fg g-1) using a dry and wet ashing sample preparation method, and in a spiked cabbage reference material (394±54 fg g-1 compared to an indicative value of 467 fg g-1) using microwave digestion. Sequential separation of Pu and U was achieved by on-column reduction of Pu with titanium(III) chloride and elution in 4 M HCl to facilitate the determination of 239Pu in samples containing high levels of 238U, thereby eliminating the interference of 238U1H+ at m/z 239. The sequential elution procedure was used to determine 239Pu in NIST human lung (814±55 fg g-1 compared with a certified range of 227-951 fg g-1) and NIST Rocky Flats Soil (2423±137 fg g-1 compared with a certified value of 3307±248 fg g-1).
Actinides Thorium-232 Neptunium-237 Americium-241 Americium-243 Plutonium-239 Plutonium-240 Uranium-238 Mass spectrometry Solid phase extraction Resin