14C BLANK CORRECTIONS FOR 25-100 μG SAMPLES AT THE NATIONAL OCEAN SCIENCES AMS LABORATORY

被引：13

作者：

Roberts, M. L. ^{[1
]}

Elder, K. L. ^{[1
]}

Jenkins, W. J. ^{[1
]}

Gagnon, A. R. ^{[1
]}

Xu, L. ^{[1
]}

Hlavenka, J. D. ^{[1
]}

Longworth, B. E. ^{[1
]}

机构：

[1] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA

来源：

RADIOCARBON | 2019年 / 61卷 / 05期

基金：

美国国家科学基金会;

关键词：

AMS; AMS dating; blank corrections; RADIOCARBON; PERFORMANCE;

D O I：

10.1017/RDC.2019.74

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Replicate radiocarbon (C-14) measurements of organic and inorganic control samples, with known Fraction Modern values in the range Fm = 0-1.5 and mass range 6 mu g-2 mg carbon, are used to determine both the mass and radiocarbon content of the blank carbon introduced during sample processing and measurement in our laboratory. These data are used to model, separately for organic and inorganic samples, the blank contribution and subsequently "blank correct" measured unknowns in the mass range 25-100 mu g. Data, formulas, and an assessment of the precision and accuracy of the blank correction are presented.

引用

页码：1403 / 1411

页数：9

共 14 条

[1] Corrections for contamination background in AMS C-14 measurements [J].

Brown, TA ;

Southon, JR .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1997, 123 (1-4) :208-213

[2] ISOTOPE-RATIO AND BACKGROUND CORRECTIONS FOR ACCELERATOR MASS-SPECTROMETRY RADIOCARBON MEASUREMENTS [J].

DONAHUE, DJ ;

LINICK, TW ;

JULL, AJT .

RADIOCARBON, 1990, 32 (02) :135-142

[3] The NOSAMS sample preparation laboratory in the next millenium: Progress after the WOCE program [J].

Gagnon, AR ;

McNichol, AP ;

Donoghue, JC ;

Stuart, DR ;

von Reden, K .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2000, 172 :409-415

[4] COMPREHENSIVE RADIOCARBON ANALYSIS OF BENZENE POLYCARBOXYLIC ACIDS (BPCAs) DERIVED FROM PYROGENIC CARBON IN ENVIRONMENTAL SAMPLES [J].

Hanke, U. M. ;

Wacker, L. ;

Haghipour, N. ;

Schmidt, M. W. I. ;

Eglinton, T. I. ;

McIntyre, C. P. .

RADIOCARBON, 2017, 59 (04) :1103-1116

[5]

IAEA, 2014, IAEAC1 RS

[6]

Olsson I.U., 1970, Nobel Symposium, P17

[7] A HIGH-PERFORMANCE 14C ACCELERATOR MASS SPECTROMETRY SYSTEM [J].

Roberts, M. L. ;

Burton, J. R. ;

Elder, K. L. ;

Longworth, B. E. ;

McIntyre, C. P. ;

von Reden, K. F. ;

Han, B. X. ;

Rosenheim, B. E. ;

Jenkins, W. J. ;

Galutschek, E. ;

McNichol, A. P. .

RADIOCARBON, 2010, 52 (02) :228-235

[8] BLANK ASSESSMENT FOR ULTRA-SMALL RADIOCARBON SAMPLES: CHEMICAL EXTRACTION AND SEPARATION VERSUS AMS [J].

Santos, Guaciara M. ;

Southon, John R. ;

Drenzek, Nicholas J. ;

Ziolkowski, Lori A. ;

Druffel, Ellen ;

Xu, Xiaomei ;

Zhang, Dachun ;

Trumbore, Susan ;

Eglinton, Timothy I. ;

Hughen, Konrad A. .

RADIOCARBON, 2010, 52 (03) :1322-1335

[9] THE FIFTH INTERNATIONAL RADIOCARBON INTERCOMPARISON (VIRI): AN ASSESSMENT OF LABORATORY PERFORMANCE IN STAGE 3 [J].

Scott, E. Marian ;

Cook, Gordon T. ;

Naysmith, Philip .

RADIOCARBON, 2010, 52 (03) :859-865

[10]

Scott EM., 2003, RADIOCARBON, V45, P135

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