Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

326 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Publication Date timeline is not available.
Page 1
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).
Gehre M, Renpenning J, Geilmann H, Qi H, Coplen TB, Kümmel S, Ivdra N, Brand WA, Schimmelmann A. Gehre M, et al. Among authors: kummel s. Rapid Commun Mass Spectrom. 2017 Mar 30;31(6):475-484. doi: 10.1002/rcm.7810. Rapid Commun Mass Spectrom. 2017. PMID: 27984667
Toward Improved Accuracy in Chlorine Isotope Analysis: Synthesis Routes for In-House Standards and Characterization via Complementary Mass Spectrometry Methods.
Lihl C, Renpenning J, Kümmel S, Gelman F, Schürner HKV, Daubmeier M, Heckel B, Melsbach A, Bernstein A, Shouakar-Stash O, Gehre M, Elsner M. Lihl C, et al. Among authors: kummel s. Anal Chem. 2019 Oct 1;91(19):12290-12297. doi: 10.1021/acs.analchem.9b02463. Epub 2019 Sep 17. Anal Chem. 2019. PMID: 31454232
Distinct nitrogen cycling and steep chemical gradients in Trichodesmium colonies.
Klawonn I, Eichner MJ, Wilson ST, Moradi N, Thamdrup B, Kümmel S, Gehre M, Khalili A, Grossart HP, Karl DM, Ploug H. Klawonn I, et al. Among authors: kummel s. ISME J. 2020 Feb;14(2):399-412. doi: 10.1038/s41396-019-0514-9. Epub 2019 Oct 21. ISME J. 2020. PMID: 31636364 Free PMC article.
326 results