Results 181 to 190 of about 52,198 (240)

Revisiting Securidaca longipedunculata Seed Oil: Applying NMR and Mass Spectroscopy to Confirm the Presence of 2‐Acetyl‐1,3‐Diacyl–sn‐Glycerols and Conjugated Hydroxydienoic Fatty Acids

Journal of the American Oil Chemists' Society, EarlyView.
The manuscript confirms and expands on previous reports concerning the presence of unusual conjugated hydroxydienoic fatty acids and acetyl‐TAG in the seed oil of Securidaca longipedunculata. The location of acetate only at sn‐2 of TAG was conclusively shown by high resolution NMR and hydroxy seed fatty acids are characterized.
Mark A. Smith, Jianfeng Zhu, Jin‐Yue Sun   +2 more
wiley   +1 more source

Determination of stable carbon isotope ratios for molecules in natural organic matter using ESI FT-ICR MS. [PDF]

Sci Adv
Gao S, Koch BP, Kümmel S, Tebben J, Lechtenfeld OJ.   +4 more
europepmc   +1 more source

A Stable Isotope Tracing Primer for the Mass Spectrometrist. [PDF]

Annu Rev Anal Chem (Palo Alto Calif)
Solmonson A, Faubert B, Mathews TP.
europepmc   +1 more source

A Cyanide-Free UHPLC-MS/MS Workflow for the Analysis of Major Cobalamin Vitamers in Foods. [PDF]

Foods
Wang F, Cao L, Ding M, Li R, Zhang C, Li B, Yang Z, Liu K, Xin J, Li X, Xu T, Deng L.   +11 more
europepmc   +1 more source

Structural Analysis of Curium, Promethium, and Early Lanthanides Using 2,2':6',2″-Terpyridine in the Presence of Acid. [PDF]

Inorg Chem
Vogt TB, Simms ME, Gaiser AN, White FD.
europepmc   +1 more source

Geographical Authentication of <i>Aquilaria sinensis</i> Using Integrated C and O Stable Isotope Analysis Coupled with Chemometric Profiling. [PDF]

Molecules
Zeng L, Lin G, He X, Qiu J, Kim YS, Liang D, Wei J, Mai MM, Gao J.   +8 more
europepmc   +1 more source

A Combined MS/MS and IMS Study Into the Fragmentation Pathway of Nifedipine. [PDF]

J Mass Spectrom
Han P, Thomassen N, Honing M.
europepmc   +1 more source

Separation of isotopes

, 1979
openaire   +1 more source

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Isotope Effect and Isotope Separation: A Chemist's View

Journal of Nuclear Science and Technology, 2002
What causes the isotope effects (IE)? This presentation will be centered around the equilibrium isotope effects due to the differences in the nuclear masses. The occurrence of the equilibrium constant, K, of isotope exchange reactions which differ from the values predicted by the classical theory of statistical mechanics, Kcl , is explored.
Takanobu Ishida
exaly   +2 more sources