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On the basis of gas chromatography coupled with time-of-flight mass spectrometry, we assessed the constituents and relative quantities of fatty acids extracted by supercritical carbon dioxide in seeds of hazelnut. Hazelnut seeds contain four fatty acids (palmitic, stearic, oleic, and linoleic acids). The content of unsaturated fatty acids is more than 92.9% in hazelnut seed oil. Oleic acid, which constitutes 76.1%, has a high boiling point and low volatility. Hazelnut oil has good storage stability and is recommended as senior edible oil for health and the food industry. Our study reveals the important contribution of hazelnut in the production of bioactive oils and compounds that prevent obesity, cancer, coronary disease, and many other human health as well as pharmaceutical challenges.

Genetics. --- Mass spectrometry. --- Fatty acids.

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It is estimated that there are about 10 million organic chemicals known, and about 100,000 new organic compounds are produced each year. Some of these new chemicals are made in the laboratory and some are isolated from natural products. The structural determination of these compounds is the job of the chemist. There are several instrumental techniques used to determine the structures of organic compounds. These include NMR, UV/visible, infrared spectroscopy, mass spectrometry, and X-ray crystallography. Of all the instrumental techniques listed, infrared spectroscopy and mass spectrometry are the two most popular techniques, mainly because they tend to be less expensive and give us the most structural information.This book is an introductory text designed to acquaint undergraduate and graduate students with the basic theory and interpretative techniques of mass spectrometry. Much of the material in this text has been used over a period of several years for teaching courses in materials characterization and chemical analysis. It presents the mass spectra of the major classes of organic compounds and correlates the fragmentation pattern of each spectrum with the structural features of the compound it represents. This has been done for hydrocarbons, organic acids, ketones, aldehydes, esters, anhydrides, phenols, amines, and amides. The text discusses the origin of the fragments, techniques, innovations, and applications in mass spectrometry. It is interspersed with many illustrations, examples, an adequate but not overwhelming bibliography, and problems for students. It will serve as a lecture text for a one-semester course in mass spectrometry or can be used to teach the mass spectra portion of a broader course in material characterization and chemical analysis.

Mass spectrometry. --- Spectroscopie de masse.

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This book discusses fragmentation mechanisms of molecules under mass spectrometry conditions and the resulting peaks observed in ESI-MS/MS experiments. The underlying principles are used to understand everything from small molecules to biological poly-peptides collision induced dissociation. In a theoretical approach, gas phase reactivity of molecular ions is coupled with chemical dynamics simulations.

Mass spectrometry. --- Chemistry, Physical and theoretical. --- Spectroscopie de masse. --- Chimie physique et théorique. --- Mass spectra --- Mass spectrograph --- Mass spectroscopy --- Mass spectrum analysis --- Mass (Physics) --- Nuclear spectroscopy --- Spectrum analysis --- Mass Spectrometry. --- Spectroscopy. --- Theoretical Chemistry. --- Chimie physique et théorique.

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Mass spectrometry. --- Mass spectra --- Mass spectrograph --- Mass spectroscopy --- Mass spectrum analysis --- Mass (Physics) --- Nuclear spectroscopy --- Spectrum analysis

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This book provides an introduction to the field of Penning traps and related experimental techniques. It serves both as a primer for those entering the field, and as a quick reference for those working in it. The book is motivated by the observation that often a vast number of different resources have to be explored to gain a good overview of Penning trap principles. This is especially true for students who experience additional difficulty due to the different styles of presentation and notation. This volume provides a broad introductory overview in unified notation.

Particles (Nuclear physics) --- Penning trap mass spectrometry. --- Physics. --- Nuclear physics. --- Atoms. --- Physical measurements. --- Measurement. --- Spectroscopy. --- Microscopy. --- Atomic, Molecular, Optical and Plasma Physics. --- Measurement Science and Instrumentation. --- Spectroscopy and Microscopy. --- Particle and Nuclear Physics. --- Ion trap mass spectrometry, Penning --- Penning ion trap mass spectrometry --- Penning trap mass spectroscopy --- Trap mass spectrometry, Penning --- Mass spectrometry --- Elementary particles (Physics) --- High energy physics --- Nuclear particles --- Nucleons --- Nuclear physics --- Measurement   . --- Atomic nuclei --- Atoms, Nuclei of --- Nucleus of the atom --- Physics --- Analysis, Microscopic --- Light microscopy --- Micrographic analysis --- Microscope and microscopy --- Microscopic analysis --- Optical microscopy --- Optics --- Analysis, Spectrum --- Spectra --- Spectrochemical analysis --- Spectrochemistry --- Spectrometry --- Spectroscopy --- Chemistry, Analytic --- Interferometry --- Radiation --- Wave-motion, Theory of --- Absorption spectra --- Light --- Spectroscope --- Measuring --- Mensuration --- Mathematics --- Technology --- Metrology --- Physical measurements --- Measurements, Physical --- Mathematical physics --- Measurement --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Chemistry, Physical and theoretical --- Matter --- Stereochemistry --- Qualitative --- Constitution --- Analytical chemistry