UNCERTAINTIES ON LEAD ISOTOPE ANALYSES:DECONVOLUTION IN THE DOUBLE-SPIKE METHOD
| dc.contributor.author | Powell R. | |
| dc.contributor.author | Woodhead J. | |
| dc.contributor.author | Hergt J. | |
| dc.date.accessioned | 2020-12-27T12:13:46Z | |
| dc.date.available | 2020-12-27T12:13:46Z | |
| dc.date.issued | 1998 | |
| dc.description.abstract | A weighted least-squares method is used to generate the `true' lead isotopic composition from measurements on unspiked and spiked aliquots of a sample using the double-spike method. A form for the weighting based on theoretical mass spectrometer errors is used.The least-squares approach is more reliable for this deconvolution of lead isotopic compositions than current methods, and allows uncertainties and correlations on the true isotopic composition to be estimated, a feature of importance in many applications. The approach allows the prediction of run parameters for `optimum' spike analysis. | |
| dc.identifier | https://elibrary.ru/item.asp?id=6639 | |
| dc.identifier.citation | Chemical Geology, 1998, , 1, 95-104 | |
| dc.identifier.issn | 0009-2541 | |
| dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/21461 | |
| dc.subject | PB ISOTOPES | |
| dc.subject | TECHNIQUES | |
| dc.subject | STATISTICS | |
| dc.title | UNCERTAINTIES ON LEAD ISOTOPE ANALYSES:DECONVOLUTION IN THE DOUBLE-SPIKE METHOD | |
| dc.type | Статья |