Academic Journal
Comparison of accuracy, precision, and sensitivity in elemental assays of fish otoliths using the electron microprobe, proton-induced X-ray emission, and laser ablation inductively coupled plasma mass spectrometry
| العنوان: | Comparison of accuracy, precision, and sensitivity in elemental assays of fish otoliths using the electron microprobe, proton-induced X-ray emission, and laser ablation inductively coupled plasma mass spectrometry |
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| المؤلفون: | Campana, S E, Thorrold, S R, Jones, C M, Günther, D, Tubrett, M, Longerich, H, Jackson, S, Halden, N M, Kalish, J M, Piccoli, P, de Pontual, H, Troadec, H, Panfili, J, Secor, D H, Severin, K P, Sie, S H, Thresher, R, Teesdale, W J, Campbell, J L |
| المصدر: | Canadian Journal of Fisheries and Aquatic Sciences ; volume 54, issue 9, page 2068-2079 ; ISSN 0706-652X 1205-7533 |
| بيانات النشر: | Canadian Science Publishing |
| سنة النشر: | 1997 |
| الوصف: | The elemental composition of fish otoliths is of considerable interest to those who wish to reconstruct temperature, migration, or environmental histories of individual fish based on assays of the otolith growth sequence. However, reported differences in otolith elemental composition among studies may be due in part to performance differences among four of the most popular instruments for targeted elemental analysis: wavelength-dispersive electron microprobe (WD-EM), energy-dispersive electron microprobe (ED-EM), proton-induced X-ray emission (PIXE), and laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). To rigorously compare the sensitivity, accuracy, and precision of these four analytical tools, the International Otolith Composition Experiment distributed blind-labelled real and artificial otoliths of known but varied elemental composition to eight laboratories for assay of 10 selected elements. No one instrument type was sensitive to each element, nor was any one instrument preferred for use in all assays. In general however, abundant elements such as Na and K could only be measured accurately with an electron microprobe, while the trace elements required PIXE or LA-ICPMS. Strontium could be measured with considerable accuracy and precision by WD-EM, PIXE, and LA-ICPMS. The presence of significant, and occasionally large, differences among laboratories suggests that comparisons among published studies should be made cautiously and only after appropriate calibration. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1139/f97-117 |
| الاتاحة: | http://dx.doi.org/10.1139/f97-117 http://www.nrcresearchpress.com/doi/pdf/10.1139/f97-117 |
| Rights: | http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
| رقم الانضمام: | edsbas.47CB031F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1139/f97-117 |
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