3) Other Compounds for GC-irm-MS

The alphabetical listing of all available reference materials (http://mypage.iu.edu/~aschimme/files/alphabetical%20list%20of%20all%20reference%20materials.pdf) includes many compounds other than n-alkanes and fatty acid esters. A light blue coloring in one of the narrow columns to the right (“for GC”) identifies those compounds that are suitable for GC-irm-MS. These compounds are available in sealed glass capillaries, crimp-sealed glass vials, screw-capped glass vials, or sealed glass ampoules.

Acetanilides are available with different levels of isotopic enrichment (Schimmelmann et al., 2009, Nicotine, acetanilide and urea multi-level 2H-, 13C- and 15N-abundance reference materials for continuous-flow isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry 23, 3513–3521. http://dx.doi.org/10.1002/rcm.4277).
Androstanes (5-a)
Benzene
Biphenyl
Butylcyclohexanes (n, i)
Caffeines are available with different levels of 2H-, 13C- and 15N-enrichments
Coronene
Coumarin
Dibenzothiophene
Dichloroethylenes (cis-1,2)
Dimethylaniline (N,N)
Ethanols have been distilled from rum (sugar cane, C4 plant) and vodka (potato, C3 plant) by the "U.S. Alcohol & Tobacco Tax and Trade Bureau" (TTB) and contain a few % water, thus limiting their use to carbon stable isotopic calibration.
Iodomethanes
Methanol has been isotopically characterized for carbon, for methyl hydrogen, and for bulk hydrogen.
Methylpiperidine (N)
Naphthalene
Nicotines are available with different levels of 13C and 15N-enrichments (Schimmelmann et al., 2009, Nicotine, acetanilide and urea multi-level 2H-, 13C- and 15N--abundance reference materials for continuous-flow isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry 23, 3513–3521. http://dx.doi.org/10.1002/rcm.4277). Hydrogen stable isotope ratios are reliable only for nicotine #5.
Phenanthrene
Pyrazine
Squalane
Tetra-n-butylurea (N,N,N’,N’)
Tetramethylurea (N,N,N’,N’)
Toluene
Trichloroethylene
Xylene (m)