Ultra-trace determination of plutonium in marine samples using multi-collector inductively coupled plasma mass spectrometry

Lindahl, Patric; Keith-Roach, Miranda J.; Worsfold, Paul J.; Choi, Minseok; Shin, Hyung-Seon; Lee, Sanghoon

doi:10.1016/j.aca.2010.05.012

Cited by 59 publications

(29 citation statements)

References 52 publications

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“…The most significant interferences for Pu measurements by ICP-MS are the formation of isobaric uranium hydrides ( 238 UH + ) and peak tailing from the 238 U + peak, which may cause overestimation of the 239 Pu signal. The analytical procedure for the determination of Pu in coral samples is based on a previously reported method (Lindahl et al, 2010a). Briefly, the powder samples were first dried for 24 h at 80°C and spiked with 242 Pu (0.4 mBq) as a yield monitor.…”

Section: Analytical Proceduresmentioning

confidence: 99%

Sources of plutonium to the tropical Northwest Pacific Ocean (1943–1999) identified using a natural coral archive

Lindahl

Asami

Iryu

et al. 2011

Geochimica et Cosmochimica Acta

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Section: Analytical Proceduresmentioning

confidence: 99%

Sources of plutonium to the tropical Northwest Pacific Ocean (1943–1999) identified using a natural coral archive

Lindahl

Asami

Iryu

et al. 2011

Geochimica et Cosmochimica Acta

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“…In literature, various procedures for the separation of actinides with TRU ® resin are presented 26 , 27 , 29 , 31 , 33 , 34 . Although 5 to 10 mL of 4 M HNO 3 is commonly used for equilibration of the resin and rinsing/washing after the sample loading, various separation procedures of Pu and Am were examined to obtain better chemical yield using radioactive tracers ( 242 Pu IRMM-085 and 243 Am NIST 4332E) and liquid scintillation counting.…”

Section: Sampling and Experimental Methodsmentioning

confidence: 99%

Scavenged 239Pu, 240Pu, and 241Am from snowfalls in the atmosphere settling on Mt. Zugspitze in 2014, 2015 and 2016

Gückel

Shinonaga

Christl

et al. 2017

Sci Rep

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Concentrations of 239Pu, 240Pu, and 241Am, and atomic ratio of 240Pu/239Pu in freshly fallen snow on Mt. Zugspitze collected in 2014, 2015 and 2016 were determined by accelerator mass spectrometry (AMS). For the sub-femtogram (10−15 g) - level of Pu and Am analysis, a chemical separation procedure combined with AMS was improved and an excellent overall efficiency of about 10−4 was achieved. The concentration of 239Pu ranges from 75 ± 13 ag/kg to 2823 ± 84 ag/kg, of 240Pu from 20.6 ± 5.2 to 601 ± 21 ag/kg, and of 241Am was found in the range of 16.7 ± 5.0–218.8 ± 8.9 ag/kg. Atomic ratios of 240Pu/239Pu for most samples are comparable to the fallout in middle Europe. One exceptional sample shows a higher Pu concentration. High airborne dust concentration, wind directions, high Cs concentrations and the activity ratio of 239+240Pu/137Cs lead to the conclusion that the sample was influenced by Pu in Saharan dust transported to Mt. Zugspitze.

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“…Inductively coupled plasma mass spectrometry (ICP-MS) is undoubtedly one of the fastestgrowing tracer element techniques available today, which has clear advantages in its multiisotope capability, high speed of analysis and low detection limits [29][30][31][32][33]. With the implementation of ICP-MS instruments, more and more researchers have reported the use of ICP-MS for the determination of 238 U in seawater [34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Direct measurement of uranium in seawater by inductively coupled plasma mass spectrometry

Qiao

2018

Talanta

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A simple method for direct measurement of uranium (U) in seawater using triple quadrupole inductively coupled plasma mass spectrometry (ICP-MS) was established. The method provides a good analytical performance with respect to detection limit, accuracy, precision and sample throughput. During the method development and application, several interesting facts were observed: 1) Comparison results for reference material using different quantitation approaches indicate that isotope dilution (using U) is the most reliable to achieve accurateU measurement. The results obtained for direct U measurement in 50-fold diluted seawater samples (n = 112) also underline the difference between isotope dilution and internal (or external) standardization. 2) Appropriate dilution of seawater is important to minimize the matrix effect on the ICP-MS measurement and 20-50 dilution is recommended for natural seawater samples. 3) The sensitivity of ICP-MS was observed to increase in the beginning of sample measurement, and then decrease with the continuous injection of samples, which is believed as a consequence of matrix effect from the seawater to the ionization efficiency in the plasma. 4) When measuring samples taken from large volume of seawater stored in immovable containers for relatively long period (i.e., several months), the uranium concentration and salinity data showed slightly increasing trends with the increase of water depth in the container. Therefore, cautions need to be paid in sampling representativeness when performingU measurement for such long-term stored large volume samples.

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Ultra-trace determination of plutonium in marine samples using multi-collector inductively coupled plasma mass spectrometry

Cited by 59 publications

References 52 publications

Sources of plutonium to the tropical Northwest Pacific Ocean (1943–1999) identified using a natural coral archive

Sources of plutonium to the tropical Northwest Pacific Ocean (1943–1999) identified using a natural coral archive

Scavenged 239Pu, 240Pu, and 241Am from snowfalls in the atmosphere settling on Mt. Zugspitze in 2014, 2015 and 2016

Direct measurement of uranium in seawater by inductively coupled plasma mass spectrometry

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