Sperlich, Peter, Moossen, Heiko, Geilmann, Heike, Bury, Sarah J., Brown, Julie C.S., Moss, Rowena C., Brailsford, Gordon W., Brand, Willi A. (2021) A robust method for direct calibration of isotope ratios in gases against liquid/solid reference materials, including a laboratory comparison for δ ¹³ C‐CH ₄. Rapid Communications in Mass Spectrometry, 35 (1) doi:10.1002/rcm.8944

See Also

These are possibly similar items as determined by title/reference text matching only.

	Greule, Markus, Moossen, Heiko, Geilmann, Heike, Brand, Willi A., Keppler, Frank (2019) Methyl sulfates as methoxy isotopic reference materials for δ 13 C and δ 2 H measurements. Rapid Communications in Mass Spectrometry, 33 (4). 343-350 doi:10.1002/rcm.8355
	Qi, Haiping, Moossen, Heiko, Meijer, Harro A.J., Coplen, Tyler B., Aerts‐Bijma, Anita T., Reid, Lauren, Geilmann, Heike, Richter, Jürgen, Rothe, Michael, Brand, Willi A., Toman, Blaza, Benefield, Jacqueline, Hélie, Jean‐François (2021) USGS44, a new high‐purity calcium carbonate reference material for δ 13 C measurements. Rapid Communications in Mass Spectrometry, 35 (4) doi:10.1002/rcm.9006
	Moossen, Heiko; Steur, Pharahilda M.; Camin, Federica; Krajnc, Bor; Enke, Anett; Geilmann, Heike; Paul, Dipayan; Lange, Markus; von Rein, Isabell; Meijer, Harro A. J. (2026) How Well Do We Know VPDB—Part 2: Interlaboratory Assessment of Existing δ 13 C VPDB Reference Materials. Rapid Communications in Mass Spectrometry, 40 (4). doi:10.1002/rcm.10171
	Qi, Haiping, Coplen, Tyler B., Geilmann, Heike, Brand, Willi A., Böhlke, J. K. (2003) Two new organic reference materials forδ13C andδ15N measurements and a new value for theδ13C of NBS 22 oil. Rapid Communications in Mass Spectrometry, 17 (22). 2483-2487 doi:10.1002/rcm.1219
	Qi, Haiping, Coplen, Tyler B., Mroczkowski, Stanley J., Brand, Willi A., Brandes, Lauren, Geilmann, Heike, Schimmelmann, Arndt (2016) A new organic reference material,l-glutamic acid, USGS41a, forδ13C andδ15N measurements − a replacement for USGS41. Rapid Communications in Mass Spectrometry, 30 (7). 859-866 doi:10.1002/rcm.7510
	Brand, Willi A., Geilmann, Heike, Crosson, Eric R., Rella, Chris W. (2009) Cavity ring-down spectroscopy versus high-temperature conversion isotope ratio mass spectrometry; a case study onδ2H andδ18O of pure water samples and alcohol/water mixtures. Rapid Communications in Mass Spectrometry, 23 (12). 1879-1884 doi:10.1002/rcm.4083
	Knohl, Alexander, Werner, Roland A., Geilmann, Heike, Brand, Willi A. (2004) Kel-F™ discs improve storage time of canopy air samples in 10-mL vials for CO2-δ13C analysis. Rapid Communications in Mass Spectrometry, 18 (14). 1663-1665 doi:10.1002/rcm.1528
	Mohn, Joachim, Biasi, Christina, Bodé, Samuel, Boeckx, Pascal, Brewer, Paul J., Eggleston, Sarah, Geilmann, Heike, Guillevic, Myriam, Kaiser, Jan, Kantnerová, Kristýna, Moossen, Heiko, Müller, Joanna, Nakagawa, Mayuko, Pearce, Ruth, von Rein, Isabell, Steger, David, Toyoda, Sakae, Wanek, Wolfgang, Wexler, Sarah K., Yoshida, Naohiro, Yu, Longfei (2022) Isotopically characterised N 2 O reference materials for use as community standards. Rapid Communications in Mass Spectrometry, 36 (13) doi:10.1002/rcm.9296
	Qi, Haiping, Gröning, Manfred, Coplen, Tyler B., Buck, Bryan, Mroczkowski, Stanley J., Brand, Willi A., Geilmann, Heike, Gehre, Matthias (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, 24 (13). 1821-1827 doi:10.1002/rcm.4559
	Greule, Markus, Moossen, Heiko, Lloyd, Max K., Geilmann, Heike, Brand, Willi A., Eiler, John M., Qi, Haiping, Keppler, Frank (2020) Three wood isotopic reference materials for δ2H and δ13C measurements of plant methoxy groups. Chemical Geology, 533. 119428 doi:10.1016/j.chemgeo.2019.119428
	Brand, Willi A., Coplen, Tyler B., Aerts-Bijma, Anita T., Böhlke, J. K., Gehre, Matthias, Geilmann, Heike, Gröning, Manfred, Jansen, Henk G., Meijer, Harro A. J., Mroczkowski, Stanley J., Qi, Haiping, Soergel, Karin, Stuart-Williams, Hilary, Weise, Stephan M., Werner, Roland A. (2009) Comprehensive inter-laboratory calibration of reference materials forδ18O versus VSMOW using various on-line high-temperature conversion techniques. Rapid Communications in Mass Spectrometry, 23 (7). 999-1019 doi:10.1002/rcm.3958