They buried the techniques in a few places. Laser induced breakdown spectrometry (LIBS) https://appliedspectra.com/technology/libs.html https://appliedspectra.

They buried the techniques in a few places. Laser induced breakdown spectrometry (LIBS) https://appliedspectra.com/technology/libs.html https://appliedspectra.com/technology/libs.html Laser ablation molecular istopic spectroscopy (LAMIS) https://pubs.rsc.org/en/content/articlelanding/2016/ja/c5ja00310e https://pubs.rsc.org/en/content/articlelanding/2016/ja/c5ja0... Linked in the article is another article that elaborates https://www.iaea.org/newscenter/news/new-crp-implementation-of-nuclear-techniques-for-authentication-of-foods-with-high-value-labelling-claims-d52042 https://www.iaea.org/newscenter/news/new-crp-implementation-... *Enhancing Nuclear Analytical Techniques to Meet the Needs of Forensic Science’ (F11021)* https://www.iaea.org/projects/crp/d52040 https://www.iaea.org/projects/crp/d52040 >This project will consider applications based on hand-held and portable devices including (but not limited to) ion mobility spectrometry (IMS), near infra-red (NIR) and X-ray fluorescence (XRF) spectrometers and some bench-top laboratory instruments that have become ‘field’ transportable including laser induced breakdown spectrometry (LIBS), laser ablation molecular isotopic spectrometry (LAMIS), nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry (MS) and multi-spectral imaging (MSI). This CRP is conducted jointly with the Nuclear Sciences Instrumentation Laboratory under CRP G42007. *‘Field Deployable Analytical Methods to Assess the Authenticity, Safety and Quality of Food (D52040/G42007)* https://www.iaea.org/projects/crp/f11021 https://www.iaea.org/projects/crp/f11021 >ion and neutron beam techniques for elemental and molecular analysis is well established and such services are available through a great number of laboratories in the IAEA Member States operating ion beam accelerator or research reactor centers Isotope spectroscopy I knew of: For carbon/water isotope determination with spectroscopy you can use cavity ring-down spectroscopy (CRDS) for gas state stable isotopes (water, CO, CO2, CH4). https://en.wikipedia.org/wiki/Cavity_ring-down_spectroscopy https://en.wikipedia.org/wiki/Cavity_ring-down_spectroscopy https://www.picarro.com/environmental/support/literature/measuring_co_ch4_co2_h2o_simultaneously_using_new_crds_technology https://www.picarro.com/environmental/support/literature/mea... Picaro instrument is ok at precision, cleaning is not fun, and matrix effects suck. Laser lifetime leaves much to be desired.