The simultaneous analysis of chlorine-36, sulphur-35, and phosphorus-32 in urine

Kramer, Gary H.; Joseph, Sidney

doi:10.1139/v84-400

“…The third method was considered the best technique and required only a few minutes for analysis. Kramer and Joseph (1984) separated3%1 from raw urine by scavenging the sample with Fe(OH), precipitation and barium sulfate precipitation. The sample was acidified and 36Cl was removed as AgCl.…”

Section: Carbon-14mentioning

confidence: 99%

Radioanalytical technology for 10 CFR Part 61 and other selected radionuclides: Literature review

Thomas¹,

Thomas²,

Robertson³

1996

1

0

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NRC Job Code LlSOSDisclaimer is not a substitute for NRC regulations and compliance is not required.The approaches and/or methods described in this NUREGKR are provided for information only.Publication of this report does not necessarily constitute NRC approval or agreement with the information contained herein. AbstractA.comprehensive l i t e r a t u r e review and assessment was conducted t o identify and evaluate radioanalyti cal techno1 ogy and procedures used for measuring 10CFR61 radionuclides and 'other long-1 ived isotopes. This review evaluated radiochemical procedures currently i n use a t a number of laboratories i n the US, as well as identifying new advanced methods and techniques which-could be adapted for routine radiochemical analyses of low-level radioactive waste. The 10CFR61 radi onucl ides i ncl.ude I4C, 6oCo, 59*63Ni , "Sr, 94Nb, "Tc, '''I, 137Cs, and TRU Isotopes w i t h half-lives greater than five years. The other low-level which may be present i n various types of waste streams from nuclear power stations. radi onucl ides of interest i ncl ude 7-'0Be, 26A1 , 36Cl , 9 3 M~, lw.ll%d, and 121a-126 Sn , 0 ... -.

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“…A variety of 36 Cl analysis methods have been described in the literature, based on ion exchange chromatography [1], silver salts precipitation [1,2] or elimination of iodine by extraction in an ammoniacal solution and silver salts precipitation [3] using a liquid scintillation spectrometer, a gas proportional counter [4] or accelerator mass spectrometry [1,5].…”

Section: Introductionmentioning

confidence: 99%

Radiochemical analysis of chlorine-36

Rodrı́guez

¹

,

Piña

²

,

Lara

³

2006

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The radioactive chlorine isotope, 36 Cl, decays with a half-life of 3×10 5 years by emitting a beta particle (98 %) and by electron capture. The aim of this paper is to propose a radiochemical separation method of 36 Cl from the other beta-gamma emitters present in low and medium radioactive wastes such as spent ion exchange resins and evaporator concentrates, that arise from Nuclear Power Plants and particularly in the wastes that come from decommissioning activities of graphite reactors, in order to provide data for 36 Cl inventory calculations. The separation method proposed is based on an oxidation technique where chlorine is trapped by NaOH. 36 Cl beta emissions are measured by liquid scintillation counting by the dual label technique in order to avoid the contamination produced by 14 C which is also trapped by NaOH and which is the main contaminant present in graphite samples. The sensitivity of this method is sufficient to achieve the needed thresholds for the radiological characterization of the radioactive materials to which this method can be applied.

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“…A variety of 36 Cl analysis methods have been described in the literature, based on ion exchange chromatography [1], silver salts precipitation [1,2] or elimination of iodine by extraction in an ammoniacal solution and silver salts precipitation [3] using a liquid scintillation spectrometer, a gas proportional counter [4] or accelerator mass spectrometry [1,5].…”

Section: Introductionmentioning

confidence: 99%

Radiochemical analysis of chlorine-36

Rodrı́guez¹,

Piña²,

Lara³

2006

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The radioactive chlorine isotope, 36 Cl, decays with a half-life of 3×10 5 years by emitting a beta particle (98 %) and by electron capture. The aim of this paper is to propose a radiochemical separation method of 36 Cl from the other beta-gamma emitters present in low and medium radioactive wastes such as spent ion exchange resins and evaporator concentrates, that arise from Nuclear Power Plants and particularly in the wastes that come from decommissioning activities of graphite reactors, in order to provide data for 36 Cl inventory calculations. The separation method proposed is based on an oxidation technique where chlorine is trapped by NaOH. 36 Cl beta emissions are measured by liquid scintillation counting by the dual label technique in order to avoid the contamination produced by 14 C which is also trapped by NaOH and which is the main contaminant present in graphite samples. The sensitivity of this method is sufficient to achieve the needed thresholds for the radiological characterization of the radioactive materials to which this method can be applied.

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The simultaneous analysis of chlorine-36, sulphur-35, and phosphorus-32 in urine

Cited by 4 publications

References 1 publication

Radioanalytical technology for 10 CFR Part 61 and other selected radionuclides: Literature review

Radioanalytical technology for 10 CFR Part 61 and other selected radionuclides: Literature review

Radiochemical analysis of chlorine-36

Radiochemical analysis of chlorine-36

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