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Methods and Techniques

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Böhlke, J.K., Mroczkowski, S.J., and Coplen, T.B., 2003, Oxygen isotopes in nitrate: new reference materials For 18O:17O:16O measurements and observations on nitrate-water equilibration: Rapid Communications in Mass Spectrometry, v. 17, p. 1835-1846.
Carmody, R.W, Plummer, L.N., Busenberg, E., and Coplen, T.B., 1998, Methods for collection of dissolved sulfate and sulfide and analysis of their sulfur isotopic composition:U. S. Geological Survey Open-File Report 97-234, 91 p.
Casciotti, K. L., Sigman, D. M., Hastings, M., Böhlke, J. K., and Hilkert, A., 2002, Measurement of the oxygen isotopic composition of nitrate in seawater and freshwater using the denitrifier method: Analytical Chemistry, v. 74, p. 4905-4912.
Coplen, T. B., 1998, A manual for a laboratory information management system (LIMS) for light stable isotopes Version 7.0: U. S. Geological Survey Open-File Report 98-284, 124 p.
Coplen, T.B., 2000, Laboratory Information Management System (LIMS) for Light Stable Isotopes: U.S. Geological Survey Open-File Report 00-345, 121 p. (Geochemical Software Information) (on-line information)
Coplen, T.B., and Harper, I.T., 1994, An improved technique for the 2H/1H analysis of urines from diabetic volunteers: Biological Mass Spectrometry, v. 23, p. 437-439.
Coplen, T. B., and Wildman, J. D., 1981, An improved controller for mercury diffusion pumps: Journal of Vacuum Science Technology, v. 19, p. 112–114.
Coplen, T. B., Böhlke, J.K., and Casciotti, K. L., 2004, Using dual bacterial denitrification to improve δ15N determinations of nitrates containing mass independent 17O: Rapid Communications in Mass Spectrometry, v. 18, p. 245-250.
Coplen, T. B., Wildman, J. D., and Chen, J., 1991, Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope-ratio analysis: Analytical Chemistry, v. 63, p. 910-912.
Hopple, J.A., Hannon, J.E., and Coplen, T.B., 1998, Comparison of two stable hydrogen isotope-ratio measurement techniques on Antarctic surface-water and ice samples: Chemical Geology, v. 152, p. 321-323. (on-line abstract)
Kendall, C., and Coplen, T. B., 1985, Multisample conversion of water to hydrogen by zinc for stable isotope determination: Analytical Chemistry, v. 57, p. 1437-1440.
Michalski, G., Savarino, J., Böhlke, J. K., and Thiemens, M. H., 2002, Determination of the total oxygen isotopic composition of nitrate and the calibration of a δ17O nitrate reference material: Analytical Chemistry, v. 74, p. 4989-4993.
Revesz, K., and Böhlke, J. K., 2002, Comparison of δ18O measurements in nitrate by different combustion techniques: Analytical Chemistry, v. 74, p. 5410-5413. (online pdf)
Revesz, K., Böhlke, J.K., Smith, R.L., and Yoshinari, T., 1999, Stable isotope composition of dissolved O2 undergoing respiration in a ground-water contamination gradient: in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 323-328.
Revesz, K., Böhlke, J.K., and Yoshinari, T., 1997, Determination of δ18O and δ15N in nitrate: Analytical Chemistry, v. 69, no. 21, p. 4375-4380.
Revesz, K., Böhlke, J.K., Yoshinari, T., 1998, δ18O and δ15N determination in nitrate: International Atomic Energy Agency, Isotope Techniques in the Study of Environmental Change, Vienna, p. 851-854.
Revesz, K. and Coplen, T. B., 1991, Caution on the use of Viton or FETFE O-rings in carbon dioxide sample containers for delta O-18 analysis: Chemical Geology (Isotope Geoscience Section), v. 86, p. 259-261.
Revesz, K., and Coplen, T. B., 1990, Gas chromatographic separation of carbon dioxide and nitrous oxide for stable isotopic analysis of carbon dioxide: Analytical Chemistry, v. 62, p. 972-973.
Revesz, K., Coplen, T.B., Baedecker, M.J., Glynn, P.D., Hult, M., 1995, Methane Production and Consumption Monitored by Stable Hydrogen and Carbon Isotope Ratios at a Toxic Waste Site, Bemidji, Minnesota: Applied Geochemistry, Vol. 10, pp.505-516.
Revesz, K.M., Landwehr, J.M., Keybl, J., 2001, Measurement of delta C-13 and delta O-18 Isotopic Ratios of CaCO3 using a Thermoquest Finnigan GasBench II Delta Plus XL Continuous Flow Isotope Ratio Mass Spectrometer with Application to Devils Hole Core DH-11 Calcite: U.S. Geological Survey Open-File Report 01-257, 17 pgs. (on-line report)
Revesz, K., and Woods, P.H., 1990, A Method to Extract Soil Water for Stable Isotope Analysis. Journal of Hydrology: v. 115, p. 397-406.
Sigman, D.M., Casciotti, K.L., Andreani, M.C., Barford, C., Galanter, M., and Böhlke, J.K., 2001, A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater: Analytical Chemistry, v. 73, p. 4145-4153.
Qi, H.P., Gröning, M., Coplen, T.B., Buck, B., Mroczkowski, S.J., Brand, W.A., Geilmann, H., and Gehre, M., 2010, Novel silver-tubing method for quantitative introduction of water into high-temperature conversion systems for stable hydrogen and oxygen isotopic measurements, Rapid Communications in Mass Spectrometry, v. 24, no. 13, p. 1821–1827. (on-line article)