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List of works by Heike Geilmann

A Possible Prebiotic Formation of Ammonia from Dinitrogen on Iron Sulfide Surfaces ⬇️

scientific article published on April 4, 2003

A new organic reference material, l-glutamic acid, USGS41a, for δ13C and δ15N measurements - a replacement for USGS41

scientific article published in April 2016

A robust method for direct calibration of isotope ratios in gases against liquid/solid reference materials, including a laboratory comparison for δ13 C-CH4

scientific article published on 05 September 2020

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

Comprehensive inter-laboratory calibration of reference materials for delta18O versus VSMOW using various on-line high-temperature conversion techniques

scientific article published in April 2009

Development and evaluation of a suite of isotope reference gases for methane in air

Final report on pilot study CCQM-P211: carbon isotope delta measurements of vanillin

scientific article published in January 2022

Isotopic disproportionation during hydrogen isotopic analysis of nitrogen-bearing organic compounds

scientific article

Kel-F™ discs improve storage time of canopy air samples in 10-mL vials for CO2-δ13C analysis

article

Methyl sulfates as methoxy isotopic reference materials for δ13 C and δ2 H measurements

scientific article published on 01 February 2019

New biotite and muscovite isotopic reference materials, USGS57 and USGS58, for δ2H measurements–A replacement for NBS 30

scholarly article

Novel silver-tubing method for quantitative introduction of water into high-temperature conversion systems for stable hydrogen and oxygen isotopic measurements

scientific article

Optimization of on-line hydrogen stable isotope ratio measurements of halogen- and sulfur-bearing organic compounds using elemental analyzer-chromium/high-temperature conversion isotope ratio mass spectrometry (EA-Cr/HTC-IRMS).

scientific article

Organic Reference Materials for Hydrogen, Carbon, and Nitrogen Stable Isotope-Ratio Measurements: Caffeines, n-Alkanes, Fatty Acid Methyl Esters, Glycines, L-Valines, Polyethylenes, and Oils

scientific article

Reassessment of the NH4 NO3 thermal decomposition technique for calibration of the N2 O isotopic composition.

scientific article

Two new organic reference materials for δ13C and δ15N measurements and a new value for the δ13C of NBS 22 oil

scientific article

USGS44, a new high purity calcium carbonate reference material for δ13 C measurements

scientific article published on 17 November 2020

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