ROUTINE LEAD-ISOTOPE DETERMINATIONS USING A PB-207 PB-204 DOUBLE SPIKE - A LONG-TERM ASSESSMENT OF ANALYTICAL PRECISION AND ACCURACY

被引：110

作者：

WOODHEAD, JD ^{[1
]}

VOLKER, F ^{[1
]}

MCCULLOCH, MT ^{[1
]}

机构：

[1] UNIV KARLSRUHE,INST PETROG & GEOCHEM,KARLSRUHE,GERMANY

来源：

ANALYST | 1995年 / 120卷 / 01期

关键词：

LEAD ISOTOPE ANALYSIS; DOUBLE SPIKE TECHNIQUE;

D O I：

10.1039/an9952000035

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Lead-isotope data obtained on a multicollector mass spectrometer over a four year period using a Pb-207-Pb-204 double spike to correct for the effects of mass discrimination, are reported. Considerable improvements in both precision end accuracy over conventional correction procedures were noted, without recourse to rigorous loading or run conditions. An external precision in Pb-206/Pb-204, Pb-207/Pb-204 and Pb-208/Pb-204 ratios +/-0.003, 0.003 and 0.01 (2 x standard deviation), respectively, is routinely obtainable independent of minor variations in loading and run parameters.

引用

页码：35 / 39

页数：5

共 21 条

[1] LEAD ISOTOPIC ANALYSIS USING A DOUBLE SPIKE [J].

COMPSTON, W ;

OVERSBY, VM .

JOURNAL OF GEOPHYSICAL RESEARCH, 1969, 74 (17) :4338-&

[2]

COOPER JA, 1969, HOT BRINES RECENT HE, P499

[3] A THEORETICAL STUDY OF USE OF INTERNAL STANDARDS FOR PRECISE ISOTOPIC ANALYSIS BY SURFACE IONIZATION TECHNIQUE .1. GENERAL FIRST-ORDER ALGEBRAIC SOLUTIONS [J].

DODSON, MH .

JOURNAL OF SCIENTIFIC INSTRUMENTS, 1963, 40 (06) :289-&

[4] SIMPLIFIED EQUATIONS FOR DOUBLE-SPIKED ISOTOPIC ANALYSES [J].

DODSON, MH .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1970, 34 (11) :1241-&

[5]

Gale N.H, 1970, CHEM GEOL, V6, P305, DOI [10.1016/0009-2541(70)90031-8, DOI 10.1016/0009-2541(70)90031-8]

[6] PB ISOTOPIC TRACERS OF THE CRETACEOUS-TERTIARY EXTINCTION EVENT [J].

GALER, SJG ;

MACDOUGALL, JD ;

ERICKSON, DJ .

GEOPHYSICAL RESEARCH LETTERS, 1989, 16 (11) :1301-1304

[7] LEAD ISOTOPE RATIO MEASUREMENTS USING THE ISOMASS-54E IN FULLY-AUTOMATIC MODE [J].

GULSON, BL ;

KORSCH, MJ ;

CAMERON, M ;

VAASJOKI, M ;

MIZON, KJ ;

PORRITT, PM ;

CARR, GR ;

KAMPER, C ;

DEAN, JA ;

CALVEZ, JY .

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1984, 59 (02) :125-142

[8] PRECISE LEAD ISOTOPE MEASUREMENTS BY THE DOUBLE SPIKE TECHNIQUE - A RECONSIDERATION [J].

HAMELIN, B ;

MANHES, G ;

ALBAREDE, F ;

ALLEGRE, CJ .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1985, 49 (01) :173-182

[9] FRACTIONATION CORRECTIONS FOR MIXED-ISOTOPE SPIKES OF SR, K, AND PB [J].

HOFMANN, A .

EARTH AND PLANETARY SCIENCE LETTERS, 1971, 10 (04) :397-&

[10] COMPARATIVE URANIUM-THORIUM-LEAD AND RUBIDIUM-STRONTIUM STUDY OF SAINT-SEVERIN AMPHOTERITE - CONSEQUENCES FOR EARLY SOLAR-SYSTEM CHRONOLOGY [J].

MANHES, G ;

MINSTER, JF ;

ALLEGRE, CJ .

EARTH AND PLANETARY SCIENCE LETTERS, 1978, 39 (01) :14-24

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