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572 related items for PubMed ID: 20521813
21. A dynamic soil chamber system coupled with a tunable diode laser for online measurements of delta13C, delta18O, and efflux rate of soil-respired CO2. Powers HH, Hunt JE, Hanson DT, McDowell NG. Rapid Commun Mass Spectrom; 2010 Feb; 24(3):243-53. PubMed ID: 20049893 [Abstract] [Full Text] [Related]
22. Isotopic analysis of N and o in nitrite and nitrate by sequential selective bacterial reduction to N2O. Böhlke JK, Smith RL, Hannon JE. Anal Chem; 2007 Aug 01; 79(15):5888-95. PubMed ID: 17580983 [Abstract] [Full Text] [Related]
23. Contrasting residence times and fluxes of water and sulfate in two small forested watersheds in Virginia, USA. Böhlke JK, Michel RL. Sci Total Environ; 2009 Jul 01; 407(14):4363-77. PubMed ID: 19264348 [Abstract] [Full Text] [Related]
25. Elevated nitrate levels in the groundwater of the Gaza Strip: distribution and sources. Shomar B, Osenbrück K, Yahya A. Sci Total Environ; 2008 Jul 15; 398(1-3):164-74. PubMed ID: 18407316 [Abstract] [Full Text] [Related]
29. Estimating groundwater mixing and origin in an overexploited aquifer in Guanajuato, Mexico, using stable isotopes (strontium-87, carbon-13, deuterium and oxygen-18). Horst A, Mahlknecht J, Merkel BJ. Isotopes Environ Health Stud; 2007 Dec 15; 43(4):323-38. PubMed ID: 18041622 [Abstract] [Full Text] [Related]
32. Using ¹⁷O to investigate nitrate sources and sinks in a semi-arid groundwater system. Dejwakh NR, Meixner T, Michalski G, McIntosh J. Environ Sci Technol; 2012 Jan 17; 46(2):745-51. PubMed ID: 22148251 [Abstract] [Full Text] [Related]
38. Application of stable isotopes (δ³⁴S-SO₄, δ¹⁸O-SO₄, δ¹⁵N-NO ₃, δ¹⁸O-NO ₃) to determine natural background and contamination sources in the Guadalhorce River Basin (southern Spain). Urresti-Estala B, Vadillo-Pérez I, Jiménez-Gavilán P, Soler A, Sánchez-García D, Carrasco-Cantos F. Sci Total Environ; 2015 Feb 15; 506-507():46-57. PubMed ID: 25460938 [Abstract] [Full Text] [Related]