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Book ChapterDOI

Spectroscopic Methods in Evolved Gas Analysis: Analytic Sciences and Chemometrics

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TLDR
Several analytic instruments (like pyrolyzers, thermobalances, differential thermal analyzers or calorimeters, and sometimes even simply temperature-controlled reactors) can be on-line coupled to infrared or mass spectrometers to perform evolved gas analysis as mentioned in this paper.
Abstract
Several analytic instruments (like pyrolyzers, thermobalances, differential thermal analyzers or calorimeters, and sometimes even simply temperature-controlled reactors) can be on-line coupled to infrared or mass spectrometers to perform evolved gas analysis (EGA) because the possibility to on-line detect the nature of the released gases or vapors has become fundamental to prove a supposed reaction, either under isothermal or under heating conditions.

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Citations
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Journal ArticleDOI

FTIR-evolved gas analysis in recent thermoanalytical investigations

TL;DR: In this article, a review of recent analytical applications of evolved gas analysis performed by infrared spectroscopy (EGA-IR), selected among those published in the years 2013 to 2015, are collected.
Journal ArticleDOI

Cocaine profiling: Implementation of a predictive model by ATR-FTIR coupled with chemometrics in forensic chemistry.

TL;DR: A strategy based on Infrared Spectroscopy with Fourier Transformed and Attenuated Total Reflectance associated with chemometrics (ATR-FTIR) is proposed to identify the chemical "fingerprint" of cocaine samples, and is considered as a promising forensic tool in such situations involving profile comparisons and supporting forensic investigations.
References
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Journal ArticleDOI

A review on pyrolysis of biomass constituents: Mechanisms and composition of the products obtained from the conversion of cellulose, hemicelluloses and lignin

TL;DR: In this article, the main steps of pyrolysis and the composition of the products obtained from each constituent were synthesized and the results were used to predict the reactivity and energy content of these products and evaluate their potential use as biofuels in renewable applications.
Journal ArticleDOI

Effect of different drying techniques on flowability characteristics and chemical properties of natural carbohydrate-protein Gum from durian fruit seed.

TL;DR: The present study revealed that freeze drying among all drying techniques provided the most desirable functional properties and flow characteristics for durian seed gum.
Journal ArticleDOI

Study on the pyrolytic behaviour of xylan-based hemicellulose using TG–FTIR and Py–GC–FTIR

TL;DR: In this article, two sets of experiments are employed to investigate the mechanism of the hemicellulose pyrolysis and the formation of main gaseous and bio-oil products.
Journal ArticleDOI

Can nanoparticles really enhance thermal stability of polymers? Part I: An overview on thermal decomposition of addition polymers

TL;DR: In this paper, the effect of different nanoparticles, their dispersion and the used modifiers, on polymer thermal stability was highlighted, highlighting the effect that hydrogen or covalent bonds can increase the adhesion of nanoparticles with the polymer matrix, resulting in higher dispersion degrees.
Journal ArticleDOI

Pyrolysis of waste materials using TGA-MS and TGA-FTIR as complementary characterisation techniques

TL;DR: In this article, a comparison of the volatile species evolved by thermal degradation (TGA) and the subsequent characterisation by the MS and FTIR spectra was performed using a model based on first-order reactions with a distribution of the activation energies.