Study of Thermal Behavior of Vitamin D<sub>3</sub> by Pyrolysis ‐ GC ‐ MS in Combination with Boiling Point ‐ Retention Time Correlation

Sun, Yuan; Liu, Baoxia; Wang, Guoqing; Zhang, Rongjie; Xie, Bing

doi:10.1002/adic.200590065

Annali di Chimica

2005

DOI: 10.1002/adic.200590065

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Study of Thermal Behavior of Vitamin D₃ by Pyrolysis ‐ GC ‐ MS in Combination with Boiling Point ‐ Retention Time Correlation

Yuan Sun¹,

Baoxia Liu²,

Guoqing Wang³

et al.

Abstract: The thermal behavior of vitamin D3 was studied based on pyrolysis-GC-MS technique. It was pyrolyzed at 600 degrees C, 750 degrees C, 900 degrees C, respectively. The pyrolysis product were separated With an HP-5 column and identified by the NIST mass spectral search program in combination with the correlation of boiling point and retention time (BP-RT). There are totally 50 components, including mono aromatics and polycyclic aromatic hydrocarbons (PAHs), were determined. It is shown that the contents of the PA… Show more

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Characterization of the Thermal Decomposition and Polymerization of Arprocarb Using Pyrolysis‐GC‐MS

et al. 2006

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Arprocarb is a carbamate type insecticide used to control cockroaches, flies, mosquitoes, and is a lawn and turf insect growth regulator. In order to evaluate the effects of the thermal behavior of arprocarb on its bioactivity or the environment, its thermal decomposition and polymerization were characterized using pyrolysis-GC-MS (Py-GC-MS). Arprocarb was pyrolysed at 450 degrees C, 600 degrees C, 750 degrees C, and 900 degrees C, respectively. In all 71 components were determined. It was found that arprocarb was obviously decomposed when the temperature was lower (450 approximately 750 degrees qC), and a large number of mono- and polycyclic aromatic hydrocarbons (PAHs) were produced at higher temperatures (750 approximately 900 degrees C). Furthermore, the variety of the representative compounds versus the temperature was reported. The research results can provide useful information for the understanding of the thermal behavior of arprocarb.

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Characterization of the Thermal Decomposition and Polymerization of Arprocarb Using Pyrolysis‐GC‐MS

et al. 2006

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Current literature in mass spectrometry

2006

J. Mass Spectrom.

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The birdcage: The title anion, which contains two endohedral d10 metal atoms, is the second known ternary cluster anion comprising only metal atoms (see picture: Sn orange, Sn/Bi blue, Ni black). The K([2.2.2]crypt) salt was obtained upon reaction of the binary precursor [Sn2Bi2]2− with [Ni(cod)2] in ethylenediamine/toluene by a complicated fragmentation/re‐arrangement process. X‐ray diffraction and DFT calculations confirm the composition of the anion.

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Recent trends and developments in pyrolysis–gas chromatography

Sobeih

Baron

Gonzalez-Rodriguez

2008

Journal of Chromatography A

148

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13 14 Pyrolysis-gas chromatography (Py-GC) has become well established as a simple, quick and reliable 15 analytical technique for a range of applications including the analysis of polymeric materials. Recent 16 developments in Py-GC technology and instrumentation include laser pyrolysis and non-discriminating 17 pyrolysis. Progress has also been made in the detection of low level polymer additives with the use of 18 novel Py-GC devices. Furthermore, it has been predicted that future advances in separation technology 19 such as the use of comprehensive two-dimensional gas chromatography will further enhance the 20 analytical scope of Py-GC. 21 22

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Study of Thermal Behavior of Vitamin D₃ by Pyrolysis ‐ GC ‐ MS in Combination with Boiling Point ‐ Retention Time Correlation

Cited by 3 publications

References 23 publications

Characterization of the Thermal Decomposition and Polymerization of Arprocarb Using Pyrolysis‐GC‐MS

Characterization of the Thermal Decomposition and Polymerization of Arprocarb Using Pyrolysis‐GC‐MS

Current literature in mass spectrometry

Recent trends and developments in pyrolysis–gas chromatography

Contact Info

Product

Resources

About

Study of Thermal Behavior of Vitamin D3 by Pyrolysis ‐ GC ‐ MS in Combination with Boiling Point ‐ Retention Time Correlation

Cited by 3 publications

References 23 publications

Characterization of the Thermal Decomposition and Polymerization of Arprocarb Using Pyrolysis‐GC‐MS

Characterization of the Thermal Decomposition and Polymerization of Arprocarb Using Pyrolysis‐GC‐MS

Current literature in mass spectrometry

Recent trends and developments in pyrolysis–gas chromatography

Contact Info

Product

Resources

About

Study of Thermal Behavior of Vitamin D₃ by Pyrolysis ‐ GC ‐ MS in Combination with Boiling Point ‐ Retention Time Correlation