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] examined the group hydrocarbon composition of crude oils and oil heavy residues using TG and DSC. In hyphenated techniques, the multiple data is gathered during one run of experiment. These multiple data can be including the type of the volatile products as

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Investigation of polymers by a novel analytical approach for evolved gas analysis in thermogravimetry

Gas chromatography comprehensively coupled to single photon ionization mass spectrometry

Journal of Thermal Analysis and Calorimetry
Authors: Mohammad R. Saraji-Bozorgzad, Thorsten Streibel, Markus Eschner, Thomas M. Groeger, Robert Geissler, Erwin Kaisersberger, Thomas Denner, and Ralf Zimmermann

impossible. To overcome this difficulty, soft ionization has been applied in TA–MS hyphenation, e.g., chemical ionization (CI) [ 10 ], field ionization (FI) [ 11 ], meta stable atom bombardment (MAB [ 12 – 14 ], which is based on Penning ionization [ 15 ] and

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study Cr sorbed MAP. The hyphenated technique has been used to characterize a wide variety of materials [ 20 – 23 ]. For MAP this approach is effective as FT-IR can distinguish between evolved H 2 O(g) and NH 3 (g), which have similar molecular masses

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–solid reaction occurring in multi-components systems. Thus, the direct analysis of gas composition, by continuous monitoring with a hyphenated technique, has attracted more attention in the identification of gaseous products to study the characteristics and

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Acta Chromatographica
Authors: Stefano Dugheri, Alessandro Bonari, Ilenia Pompilio, Marco Colpo, Nicola Mucci, Manfredi Montalti, and Giulio Arcangeli

and later analyzed by liquid or gas chromatography (GC) [ 3 - 5 ]. In the last 10 years, the developing interest in hyphenated techniques in analytical chemistry with resultant solvent and sample savings, sample enrichment, faster sample preparation

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to thermal analysis has become the most widely used EGA method [ 1 ]. Several hyphenated TA-MS instruments are commercially available. In most cases sampling and transfer of the species evolved in the thermal process is performed via a heated

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Decomposition of perfluoropolyether lubricants

A study using TG–MS in the presence of alumina powder

Journal of Thermal Analysis and Calorimetry
Authors: Mimi Y. Keating and Jon L. Howell

. Results and discussions The PFPE lubricants provide both high temperature and chemical inertness that are important to users in a diversity of industries. In this study, we used a hyphenated technique TG-MS to track the extent of decomposition and

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-010-1211-0 . 18. Herrera , M , Matuschek , G , Kettrup , A . Thermal degradation studies of some aliphatic polyamides using hyphenated techniques (TG-MS, TG-FTIR) . J Therm Anal Calorim . 2000 ; 59 : 384 – 395 . 10.1023/A

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Journal of Thermal Analysis and Calorimetry
Authors: D. Wyrzykowski, E. Hebanowska, G. Nowak-Wiczk, M. Makowski, and L. Chmurzyński

-aconitic anhydride. The use of hyphenated techniques, i.e. TG-FTIR and TG-MS enabled a first time identification trial of the gaseous products resulting from decomposition of the acids studied. The analysis of the IR and MS spectra shows that the analyzed compounds

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-performance liquid chromatography [HPLC], etc.) or hyphenated with spectroscopic equipment (gas chromatography–mass spectrometry [GC–MS], LC–MS, etc.) offer a viable solution. Since its first discovery in Russia by Tswett in 1900 [ 17 ], chromatography has enjoyed

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