TG-FTIR coupled analysis applied to the studies in urolithiasis: characterization of human renal calculi

Materazzi, Stefano; Curini, Roberta; D’Ascenzo, G.; Magrì, Andrea

doi:10.1016/0040-6031(95)02404-p

Cited by 19 publications

(7 citation statements)

References 9 publications

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“…DTA-TG provided a greater ease and accuracy of qualitative analysis due to the signature curves of DTA that accompany each component's decomposition. Materazzi et al [7] later advocated the simultaneous analysis of TG with Fourier transform infrared (FTIR) spectroscopy. FTIR analyses are simultaneously carried out on the exhaust gas from the decomposition of kidney stones samples arising from the TGA.…”

Section: Introductionmentioning

confidence: 99%

Characterization of kidney stones using thermogravimetric analysis with electron dispersive spectroscopy

2011

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Urinary calculi are formed from a result of biological mal-adjustment of urine leading to deposits of salt and mineral crystals along the urinary collecting system. They are usually multiphasic material with complex compositions. The objective of this study is to identify and characterize a series of urinary calculi samples using a combination of thermogravimetric analysis (TGA) with electron dispersive spectroscopy (EDS). These samples were retrieved during percutaneous nephrolithotripsy. Additional characterization by hardness value and microstructure is also carried out for co-relation study. The samples are found to be uric acid, calcium oxalates and magnesium ammonium phosphate hexahydrate. TGA is indeed one of the viable analytical tools for urinary calculi as it is fast and simple. The combinational application of EDS is beneficial when there is a need for differentiated qualitative chemical composition detection at the identified nuclei position for urinary calculi with spatial variation in composition. The combination of TGA and EDS will thus facilitate the correct diagnosis and treatment by clinicians.

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Section: Introductionmentioning

confidence: 99%

Characterization of kidney stones using thermogravimetric analysis with electron dispersive spectroscopy

2011

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“…Thermogravimetry coupled with Fourier transform infrared spectroscopy (TG‐FTIR) is one of the most useful tools to dynamically analyze the evolution of volatiles in the thermal decomposition of materials. TG gives quantitative information concerning the analyzed materials and the information, especially in the case of complex mixtures, are improved by the FTIR spectroscopic analysis of the gases evolved during the thermal decomposition . TG‐FTIR has already been widely used to study the biomass pyrolysis, medical wastes, and polymer thermal degradation as well as to forecast the hazardous emissions that may be produced in the case of major accidents .…”

Section: Introductionmentioning

confidence: 99%

Comparative study on thermal decomposition and combustion behavior of glass‐fiber reinforced poly(1,4‐butylene terephthalate) composites containing trivalent metal (Al, La, Ce) hypophosphite

Yang

Song

2013

Polymer Composites

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High fire hazards of glass-fiber reinforced polymer composites have greatly limited their development and application. To reduce their flammability, the composites have to be treated with flame retardants. This work examines the use of three trivalent metal (Al, La, Ce) hypophosphites as halogen-free flame retardants for glass-fiber reinforced poly(1,4-butylene terephthalate) (GRPBT) composites. The aim of this study is to quantitatively investigate the effect of metal hypophosphites on the thermal decomposition and combustion behavior of GRPBT composites by means of cone calorimeter and thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR) techniques. The peak heat release rate and total smoke production of GRPBT/cerium hypophosphite (CHP) composite evaluated by cone calorimeter are reduced, respectively, by around 76 and 44% compared to the results of GRPBT. The volatilized esters measured by TG-FTIR in the decomposition of GRPBT/CHP are decreased by about 69%. The results showed that rare earth hypophosphites can effectively inhibit the thermal decomposition and combustion behaviors of GRPBT in comparison with aluminum hypophosphite. POLYM.

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“…The qualitative analysis is routinely performed by comparing recorded spectra with key fragment ions and their relative intensities for known elements and compounds (MS) or with reference spectroscopic signals (FTIR). The development of TA-FTIR and TA-MS hyphenated techniques has been reviewed by Materazzi et al [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Influence of measuring conditions on the quantification of spectroscopic signals in TA-FTIR-MS systems

Eigenmann¹,

Maciejewski²,

Baiker³

2006

J Therm Anal Calorim

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TG-FTIR coupled analysis applied to the studies in urolithiasis: characterization of human renal calculi

Cited by 19 publications

References 9 publications

Characterization of kidney stones using thermogravimetric analysis with electron dispersive spectroscopy

Characterization of kidney stones using thermogravimetric analysis with electron dispersive spectroscopy

Comparative study on thermal decomposition and combustion behavior of glass‐fiber reinforced poly(1,4‐butylene terephthalate) composites containing trivalent metal (Al, La, Ce) hypophosphite

Influence of measuring conditions on the quantification of spectroscopic signals in TA-FTIR-MS systems

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