Abstract
Statistical evaluation of the results of inter-laboratory comparisons (1976-2012) suggests an overall measurement uncertainty of ±13% and serious problems in the measurements of total Si and HCO3- in geothermal waters. The reasons for the dispersion among the results of participating laboratories are: inappropriate analytical procedure, limited number of digits in the calibration equation and errors in the calculation procedure of individual laboratory.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
REFERENCES
Aitchison, J.: The statistical analysis of compositional data. Chapman and Hall (1986)
Buccianti, A., Pawlowsky-Glahn, V.: New perspectives on water chemistry and compositional data analysis. Math. Geol., 37, 703–727 (2005)
Pawlowsky-Glahn, V., Egozcue, J.J., Tolosana-Delgado, R.: Lecture notes on compositional data analysis. http://www.sediment.uni-goettingen.de/staff/tolosana/extra/CoDa.pdf (2007)
Ellis, A.J.: The IAGC inter-laboratory water analysis comparison programme. Geochim. Cosmochim. Ac., 40, 1359–1374(1976)
Verma, M.P.: IAEA Inter-laboratory Comparisons of Geothermal Water Chemistry: Critiques on Analytical Uncertainty and Accuracy, and Geothermal Reservoir Modeling. J. Iberian Geol., 39, 57–72 (2013)
Verma, M.P.: A revised analytical method for HCO3 − and CO3 2− determinations in geothermal waters: an assessment of IAGC and IAEA interlaboratory comparisons. Geostand. Geoanal. Res., 28, 391–409 (2004)
Verma, M.P.: Revised analytical methods for the determination of carbonic species in rain, ground and geothermal waters. Proceedings, WGC, Antalya, Turkey (2005)
Verma, M.P., Birkle, P., Sánchez, D.: Theoretical and Analytical Aspects of Carbonic Species Determination in Rain, Ground, Geothermal and Petroleum Waters. Proceedings, WGC, Congress, Bali, Indonesia (2010)
Verma, M.P., Izquierdo, G., Urbino, G.A., Gangloff, S., Garcia, R., Aparicio, A., Conte, T., Armienta, M.A., Sanchez, M., Gabriel, J.R.P., Fajanela, I.D., Renderos, R., Acha, C.B.A., Prasetio, R., Grajales, I.C, Delgado, L.R., Opondo, K., Esparza, R.Z., Panama, L.A., Salazar, R.T., Lim, P.G. and Javino, F.: Inter-laboratory comparison of SiO2 analysis for geothermal water chemistry. Geothermics, 44, 32–42 (2012)
Verma, M.P., Portugal, E., Gangloff, S., Armienta, M.A., Chandrasekharam, D., Sanchez, M., Renderos, R.E., Junaco, M., van Geldern, R.: Determination of carbonic species concentration in natural waters - Results from a worldwide proficiency test. Geostand. Geoanal. Res. (2014) in press
Verma, M.P., Izquierdo, G., Sangloff, S., Reyes-Delgado, L., Armienta, M.A., Sanchez, M., Garcia, R. and Turdiaman, D.: Proficiency testing statistics on Si-determinations in geothermal waters. Geostand. Geoanal. Res. (2014) submitted
ACKNOWLEDGEMENTS
This work was supported by the grant “FONDO SECTORIAL CONACYT-SENER SUSTENTABILIDAD ENERGÉTICA IIE-CEMIE-GEO-P14”.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Capital Publishing Company
About this paper
Cite this paper
Verma, M.P. (2016). Compositional Statistical Analysis of Inter-Laboratory Comparisons of Geothermal Water. In: Raju, N. (eds) Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment. Springer, Cham. https://doi.org/10.1007/978-3-319-18663-4_9
Download citation
DOI: https://doi.org/10.1007/978-3-319-18663-4_9
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-18662-7
Online ISBN: 978-3-319-18663-4
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)