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.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.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.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

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