A Beta Test Comparison Between the New Packard 2260 XL and the LKB Quantulus and 1219 SM: Low-Level Radiocarbon and Tritium Determinations

Kalin, Robert M.

doi:10.1017/s0033822200011929

Cited by 2 publications

(1 citation statement)

References 4 publications

(5 reference statements)

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“…Each counting time was 1250 min. It is included among FMs reported by Polach et al (1988), Kalin (1989), Hogg and Noakes (1992), and Pawlyta et al (1998) using the Quantulus with butyl-PBD fluor. Eighteen samples dropped in 3 mL Teflon-copper vials were measured for 15 min for 10 cycles each.…”

Section: Quenching Correction and Performancementioning

confidence: 99%

Improved Results Using Higher Ratios of Scintillator Solution to Benzene in Liquid Scintillation Spectrometry

Koba¹

2000

Radiocarbon

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Practical effects of the volumetric or weight ratio of scintillator solution to sample benzene in liquid scintillation spectrometry were examined here for radiocarbon dating. It is concluded, using a LKB-Wallac Quantulus™ 1220 and Teflon™-copper 3 mL vials with scintillator of toluene-based PPO and POPOP, that solutions containing the same concentrations of the same ratio, 1.3 or more, of scintillator solution to sample benzene show the same cpm/g and the same channel value of external standard spectrum, irrespective of different gross volumes of solutions. The addition of scintillator solution reduces background in 0.5 mL or so of benzene, and results in an appreciably enlarged figure of merit.

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Section: Quenching Correction and Performancementioning

confidence: 99%

Improved Results Using Higher Ratios of Scintillator Solution to Benzene in Liquid Scintillation Spectrometry

Koba¹

2000

Radiocarbon

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Intercomparison of High-Precision ¹⁴C Measurements at the University of Arizona and the Queen's University of Belfast Radiocarbon Laboratories

et al. 1995

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ABSTRACT. High-precision measurements were completed concurrently at the University of Arizona and the Queen's University of Belfast on blind samples of Irish oak originally measured for the 1986 radiocarbon calibration curve. Subsequent single-year Sequoiadendron results were decadally averaged and compared with published results on decadal Douglas-fir samples. The results of these intercomparisons show that the Arizona high-precision results compare favorably with published values from the University of Washington, but show a systematic offset with published Belfast data.

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A Beta Test Comparison Between the New Packard 2260 XL and the LKB Quantulus and 1219 SM: Low-Level Radiocarbon and Tritium Determinations

Cited by 2 publications

References 4 publications

Improved Results Using Higher Ratios of Scintillator Solution to Benzene in Liquid Scintillation Spectrometry

Improved Results Using Higher Ratios of Scintillator Solution to Benzene in Liquid Scintillation Spectrometry

Intercomparison of High-Precision ¹⁴C Measurements at the University of Arizona and the Queen's University of Belfast Radiocarbon Laboratories

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A Beta Test Comparison Between the New Packard 2260 XL and the LKB Quantulus and 1219 SM: Low-Level Radiocarbon and Tritium Determinations

Cited by 2 publications

References 4 publications

Improved Results Using Higher Ratios of Scintillator Solution to Benzene in Liquid Scintillation Spectrometry

Improved Results Using Higher Ratios of Scintillator Solution to Benzene in Liquid Scintillation Spectrometry

Intercomparison of High-Precision 14C Measurements at the University of Arizona and the Queen's University of Belfast Radiocarbon Laboratories

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Intercomparison of High-Precision ¹⁴C Measurements at the University of Arizona and the Queen's University of Belfast Radiocarbon Laboratories