Development of the NIST bone ash standard reference material for environmental radioactivity measurement

Zhichao Lin; K. G.W. Inn; T. Altzitzoglou; D. Arnold; D. Cavadore; G. J. Ham; M. Korun; H. Wershofen; Y. Takata; A. Young

doi:10.1016/S0969-8043(97)10064-1

Development of the NIST bone ash standard reference material for environmental radioactivity measurement

Zhichao Lin^*, K. G.W. Inn, T. Altzitzoglou, D. Arnold, D. Cavadore, G. J. Ham, M. Korun, H. Wershofen, Y. Takata, A. Young

^*Corresponding author for this work

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Abstract

The bone ash standard reference material (SRM), a blend of 4% contaminated human bone and 96% diluent bovine bone, has been developed for radiochemical method validation and quality control for radio-bone analysis. The massic activities of ⁹⁰Sr, ²²⁶Ra, ²³⁰Th, ²³²Th, ²³⁴U, ²³⁵U, ²³⁸U, ²³⁸Pu, ((239+240))Pu and ((243+244))Cm were certified using a variety of radiochemical procedures and detection methods. Measurements confirmed undetectable radionuclide heterogeneity down to a sample size of 5 g, thereby implying adequate blending of particulate materials with dilution factors of up to 17,900. The results among most of the intercomparison laboratories and their methods were consistent. Disequilibrium was observed for decay chains: ²³⁴U(0.67 mBq/g)- ²³⁰Th(O.47 mBq/g)-²²⁶Ra(15.1 mBq/g)-²¹⁰Pb(23 mBq/g)-²¹⁰Po(13 mBq/g) and ²³²Th(0.99 mBq/g)-²²⁸Ra(6.1 mBq/g)-²²⁸Th(7.1 mBq/g). The disequilibria were the results of mixing occupationally contaminated human bone with natural bovine bone and the fractionation during internal biological processes. The massic activity of ²¹⁰Pb, ²²⁸Th and ²⁴¹Am were not certified because of insufficient ²²⁸Ra and ²⁴¹Pu data and lack of knowledge in how ²²²Rn and its daughters will be fractionated in the SRM bottle over time.

Original language	English
Pages (from-to)	1301-1306
Number of pages	6
Journal	Applied Radiation and Isotopes
Volume	49
Issue number	9-11
DOIs	https://doi.org/10.1016/S0969-8043(97)10064-1
Publication status	Published - Aug 1998
Event	Proceedings of the 1997 Conference on Radionuclide Metrology and its Applications, ICRM'97 - Gaithersburg, MD, USA Duration: 19 May 1997 → 23 May 1997

Bibliographical note

Funding Information:
The authors gratefully thank the Standard Reference Materials Program of National Institute of Standards and Technology for funding this work. Dr Simon Jerome (National Physics Laboratory, U.K.) is also thanked for assistance in the European intercomparison measurements and comments in preparing of this manuscript.

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10.1016/S0969-8043(97)10064-1

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@article{5f74f8bf04e8477c989877df723f7020,

title = "Development of the NIST bone ash standard reference material for environmental radioactivity measurement",

abstract = "The bone ash standard reference material (SRM), a blend of 4% contaminated human bone and 96% diluent bovine bone, has been developed for radiochemical method validation and quality control for radio-bone analysis. The massic activities of 90Sr, 226Ra, 230Th, 232Th, 234U, 235U, 238U, 238Pu, ((239+240))Pu and ((243+244))Cm were certified using a variety of radiochemical procedures and detection methods. Measurements confirmed undetectable radionuclide heterogeneity down to a sample size of 5 g, thereby implying adequate blending of particulate materials with dilution factors of up to 17,900. The results among most of the intercomparison laboratories and their methods were consistent. Disequilibrium was observed for decay chains: 234U(0.67 mBq/g)- 230Th(O.47 mBq/g)-226Ra(15.1 mBq/g)-210Pb(23 mBq/g)-210Po(13 mBq/g) and 232Th(0.99 mBq/g)-228Ra(6.1 mBq/g)-228Th(7.1 mBq/g). The disequilibria were the results of mixing occupationally contaminated human bone with natural bovine bone and the fractionation during internal biological processes. The massic activity of 210Pb, 228Th and 241Am were not certified because of insufficient 228Ra and 241Pu data and lack of knowledge in how 222Rn and its daughters will be fractionated in the SRM bottle over time.",

author = "Zhichao Lin and Inn, {K. G.W.} and T. Altzitzoglou and D. Arnold and D. Cavadore and Ham, {G. J.} and M. Korun and H. Wershofen and Y. Takata and A. Young",

note = "Funding Information: The authors gratefully thank the Standard Reference Materials Program of National Institute of Standards and Technology for funding this work. Dr Simon Jerome (National Physics Laboratory, U.K.) is also thanked for assistance in the European intercomparison measurements and comments in preparing of this manuscript.; Proceedings of the 1997 Conference on Radionuclide Metrology and its Applications, ICRM'97 ; Conference date: 19-05-1997 Through 23-05-1997",

year = "1998",

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doi = "10.1016/S0969-8043(97)10064-1",

language = "English",

volume = "49",

pages = "1301--1306",

journal = "Applied Radiation and Isotopes",

issn = "0969-8043",

publisher = "Elsevier",

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Development of the NIST bone ash standard reference material for environmental radioactivity measurement. / Lin, Zhichao; Inn, K. G.W.; Altzitzoglou, T.; Arnold, D.; Cavadore, D.; Ham, G. J.; Korun, M.; Wershofen, H.; Takata, Y.; Young, A.

In: Applied Radiation and Isotopes, Vol. 49, No. 9-11, 08.1998, p. 1301-1306.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Development of the NIST bone ash standard reference material for environmental radioactivity measurement

AU - Lin, Zhichao

AU - Inn, K. G.W.

AU - Altzitzoglou, T.

AU - Arnold, D.

AU - Cavadore, D.

AU - Ham, G. J.

AU - Korun, M.

AU - Wershofen, H.

AU - Takata, Y.

AU - Young, A.

N1 - Funding Information: The authors gratefully thank the Standard Reference Materials Program of National Institute of Standards and Technology for funding this work. Dr Simon Jerome (National Physics Laboratory, U.K.) is also thanked for assistance in the European intercomparison measurements and comments in preparing of this manuscript.

PY - 1998/8

Y1 - 1998/8

N2 - The bone ash standard reference material (SRM), a blend of 4% contaminated human bone and 96% diluent bovine bone, has been developed for radiochemical method validation and quality control for radio-bone analysis. The massic activities of 90Sr, 226Ra, 230Th, 232Th, 234U, 235U, 238U, 238Pu, ((239+240))Pu and ((243+244))Cm were certified using a variety of radiochemical procedures and detection methods. Measurements confirmed undetectable radionuclide heterogeneity down to a sample size of 5 g, thereby implying adequate blending of particulate materials with dilution factors of up to 17,900. The results among most of the intercomparison laboratories and their methods were consistent. Disequilibrium was observed for decay chains: 234U(0.67 mBq/g)- 230Th(O.47 mBq/g)-226Ra(15.1 mBq/g)-210Pb(23 mBq/g)-210Po(13 mBq/g) and 232Th(0.99 mBq/g)-228Ra(6.1 mBq/g)-228Th(7.1 mBq/g). The disequilibria were the results of mixing occupationally contaminated human bone with natural bovine bone and the fractionation during internal biological processes. The massic activity of 210Pb, 228Th and 241Am were not certified because of insufficient 228Ra and 241Pu data and lack of knowledge in how 222Rn and its daughters will be fractionated in the SRM bottle over time.

AB - The bone ash standard reference material (SRM), a blend of 4% contaminated human bone and 96% diluent bovine bone, has been developed for radiochemical method validation and quality control for radio-bone analysis. The massic activities of 90Sr, 226Ra, 230Th, 232Th, 234U, 235U, 238U, 238Pu, ((239+240))Pu and ((243+244))Cm were certified using a variety of radiochemical procedures and detection methods. Measurements confirmed undetectable radionuclide heterogeneity down to a sample size of 5 g, thereby implying adequate blending of particulate materials with dilution factors of up to 17,900. The results among most of the intercomparison laboratories and their methods were consistent. Disequilibrium was observed for decay chains: 234U(0.67 mBq/g)- 230Th(O.47 mBq/g)-226Ra(15.1 mBq/g)-210Pb(23 mBq/g)-210Po(13 mBq/g) and 232Th(0.99 mBq/g)-228Ra(6.1 mBq/g)-228Th(7.1 mBq/g). The disequilibria were the results of mixing occupationally contaminated human bone with natural bovine bone and the fractionation during internal biological processes. The massic activity of 210Pb, 228Th and 241Am were not certified because of insufficient 228Ra and 241Pu data and lack of knowledge in how 222Rn and its daughters will be fractionated in the SRM bottle over time.

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U2 - 10.1016/S0969-8043(97)10064-1

DO - 10.1016/S0969-8043(97)10064-1

M3 - Conference article

C2 - 9699291

AN - SCOPUS:0032146393

VL - 49

SP - 1301

EP - 1306

JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

SN - 0969-8043

IS - 9-11

T2 - Proceedings of the 1997 Conference on Radionuclide Metrology and its Applications, ICRM'97

Y2 - 19 May 1997 through 23 May 1997

ER -

Development of the NIST bone ash standard reference material for environmental radioactivity measurement

Abstract

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