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Title: Improvement of analytical capabilities of neutron activation analysis laboratory at the Colombian Geological Survey

Abstract

The Neutron Activation Analysis (NAA) laboratory at the Colombian Geological Survey has developed a technique for multi-elemental analysis of soil and plant matrices, based on Instrumental Neutron Activation Analysis (INAA) using the comparator method. In order to evaluate the analytical capabilities of the technique, the laboratory has been participating in inter-comparison tests organized by Wepal (Wageningen Evaluating Programs for Analytical Laboratories). In this work, the experimental procedure and results for the multi-elemental analysis of four soil and four plant samples during participation in the first round on 2015 of Wepal proficiency test are presented. Only elements with radioactive isotopes with medium and long half-lives have been evaluated, 15 elements for soils (As, Ce, Co, Cr, Cs, Fe, K, La, Na, Rb, Sb, Sc, Th, U and Zn) and 7 elements for plants (Br, Co, Cr, Fe, K, Na and Zn). The performance assessment by Wepal based on Z-score distributions showed that most results obtained |Z-scores| ≤ 3.

Authors:
; ; ; ; ; ; ;  [1]
  1. Colombian Geological Survey, Nuclear Affairs Technical Division, Neutron Activation Analysis Laboratory, Bogota D. C. (Colombia)
Publication Date:
OSTI Identifier:
22608526
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1753; Journal Issue: 1; Conference: Latin American symposium on nuclear physics and applications, Medellin (Colombia), 30 Nov - 4 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COMPARATIVE EVALUATIONS; DISTRIBUTION; HALF-LIFE; MULTI-ELEMENT ANALYSIS; NEUTRON ACTIVATION ANALYSIS; NEUTRONS; RADIOISOTOPES

Citation Formats

Parrado, G., E-mail: gparrado@sgc.gov.co, Cañón, Y., Peña, M., E-mail: mlpena@sgc.gov.co, Sierra, O., E-mail: osierra@sgc.gov.co, Porras, A., Alonso, D., Herrera, D. C., E-mail: dherrera@sgc.gov.co, and Orozco, J.. Improvement of analytical capabilities of neutron activation analysis laboratory at the Colombian Geological Survey. United States: N. p., 2016. Web. doi:10.1063/1.4955380.
Parrado, G., E-mail: gparrado@sgc.gov.co, Cañón, Y., Peña, M., E-mail: mlpena@sgc.gov.co, Sierra, O., E-mail: osierra@sgc.gov.co, Porras, A., Alonso, D., Herrera, D. C., E-mail: dherrera@sgc.gov.co, & Orozco, J.. Improvement of analytical capabilities of neutron activation analysis laboratory at the Colombian Geological Survey. United States. doi:10.1063/1.4955380.
Parrado, G., E-mail: gparrado@sgc.gov.co, Cañón, Y., Peña, M., E-mail: mlpena@sgc.gov.co, Sierra, O., E-mail: osierra@sgc.gov.co, Porras, A., Alonso, D., Herrera, D. C., E-mail: dherrera@sgc.gov.co, and Orozco, J.. Thu . "Improvement of analytical capabilities of neutron activation analysis laboratory at the Colombian Geological Survey". United States. doi:10.1063/1.4955380.
@article{osti_22608526,
title = {Improvement of analytical capabilities of neutron activation analysis laboratory at the Colombian Geological Survey},
author = {Parrado, G., E-mail: gparrado@sgc.gov.co and Cañón, Y. and Peña, M., E-mail: mlpena@sgc.gov.co and Sierra, O., E-mail: osierra@sgc.gov.co and Porras, A. and Alonso, D. and Herrera, D. C., E-mail: dherrera@sgc.gov.co and Orozco, J.},
abstractNote = {The Neutron Activation Analysis (NAA) laboratory at the Colombian Geological Survey has developed a technique for multi-elemental analysis of soil and plant matrices, based on Instrumental Neutron Activation Analysis (INAA) using the comparator method. In order to evaluate the analytical capabilities of the technique, the laboratory has been participating in inter-comparison tests organized by Wepal (Wageningen Evaluating Programs for Analytical Laboratories). In this work, the experimental procedure and results for the multi-elemental analysis of four soil and four plant samples during participation in the first round on 2015 of Wepal proficiency test are presented. Only elements with radioactive isotopes with medium and long half-lives have been evaluated, 15 elements for soils (As, Ce, Co, Cr, Cs, Fe, K, La, Na, Rb, Sb, Sc, Th, U and Zn) and 7 elements for plants (Br, Co, Cr, Fe, K, Na and Zn). The performance assessment by Wepal based on Z-score distributions showed that most results obtained |Z-scores| ≤ 3.},
doi = {10.1063/1.4955380},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1753,
place = {United States},
year = {Thu Jul 07 00:00:00 EDT 2016},
month = {Thu Jul 07 00:00:00 EDT 2016}
}