A new method for solvent-free application of polymers and inorganic materials to ferromagnetic wires used for pyrolysis-capillary gas chromatographic studies

Venema, A.; Veurink, J.

doi:10.1016/0165-2370(85)80110-8

Cited by 33 publications

(12 citation statements)

References 3 publications

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“…For Curie-point-pyrolysis-gas-chromatography (Py-GC) and Curie-point-pyrolysis-gas-chromatography-massspectrometry (Py-GG-MS) analyses, the samples were homogenised and then pyrolysed for 10 seconds using a ferromagnetic wire with a Curie temperature of 610°C. The samples were applied to a flattened wire according to the method described by Venema & Veurink ( 1985). Separation ofpyrolysis products was achieved on a fused-silica capillary column (25 m x 0.32 mm LD.)…”

Section: Methodsmentioning

confidence: 99%

Decay and composition of the hemichordate Rhabdopleura: implications for the taphonomy of graptolites

Briggs

Kear

Baas

et al. 1995

LET

154

136

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Although the graptolites lacked biomineralised tissue, their skeletons are abundantly preserved in deeper-water mudstones. Decay experiments and observations on the closely related living hemichordate Rhabdopleura demonstrate that the periderm and stolon are highly resistant to decay, remaining intact for mouths, whereas the zooids are unrecognizable within days. Curie-point-gas-chromatography (Py-GC) and Curie-point-gas-chromatography-mass spectrometry (Pt-GC-MS) of the periderm of Rhabdopleura confirms that proteinaceous organic matter is a major constituent. Ultrastructurally preserved graptolite periderm, on the other hand, is a highly altered kerogen-like substance rich in aliphatic biomacromolecules. The composition of the preserved graptolite periderm reflects diagenetic replacement by components probably mainly derived from algal cell walls. -from Author

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Section: Methodsmentioning

confidence: 99%

Decay and composition of the hemichordate Rhabdopleura: implications for the taphonomy of graptolites

Briggs

Kear

Baas

et al. 1995

LET

154

136

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“…Samples were pressed on flattened ferromagnetic wires (iron-nickel alloy; Curie temperature 6100C) as described by Venema and Veurink [23]. The on-line flash pyrolysis was performed by inductive heating of the wire in 0.15 s to its final temperature using a high-frequency generator (Fischer, Model 9425).…”

Section: Curie Point Pyrolysis-gas Chromatographymentioning

confidence: 99%

Identification of C2C4 alkylated benzenes in flash pyrolysates of kerogens, coals and asphaltenes

Hartgers

Damsté

Leeuw

1992

Journal of Chromatography A

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Pseudo-Kovats indices were determined for all positional isomers of Ca-C, alkylated benzenes using a non-polar capillary column (CP Sil-5). These indices were applied in combination with mass spectral data to identify these compounds in complex mixtures of a relatively non-polar nature generated upon flash pyrolysis of macromolecular sedimentary organic matter (kerogens, asphaltenes and coals). Alkylbenzene distribution patterns were constructed by integration of appropriate mass chromatograms. Generally, toluene is the major pyrolysis product. Other specific alkylated benzenes (e.g. 1,2,3,4_tetramethylbenzeneand I-methyl-4-isopropylbenzene) were found to be enhanced in flash pyrolysates of different samples. Flash pyrolysates of asphaltene and kerogen fractions isolated from the same oil shale exhibit similar alkylbenzene distributions.1NTRODUCTlON

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“…with a radius of the disc minus 14 mm was engraved to Propellants, Explosives, Pyrotechnics 20, 182-1 86 ( 1995) ensure that the length of the flattened part was always the same. In this way a more reproducible temperature rise time (TRT) of the wire can be obtained with an estimated TRT of around 10 ms (6). To press a certain amount of a PBX sample on the wire about twice the amount was transferred to one disc.…”

Section: Sample Preparationmentioning

confidence: 99%

Characterization of plastic‐bonded explosives by pyrolysis gas chromatography and multivariate data analysis. Part I: Setup of the method

Rietjens¹,

Wils²

1995

Propellants Explo Pyrotec

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A further development of the procedure based on pyrolysis gas chromatography (Py‐GC) for the characterization of plastic‐bonded explosives (PBX's) is described. After grinding, the PBX samples were pressed on a pyrolysis wire followed by Py‐GC analysis. The peak areas obtained were normalized and subsequently submitted to multivariate data analysis. The use of principal component analysis (PCA) was tested on five samples which differed slightly in composition and age. The results were promising and showed that PCA is a powerful tool for the differentiation between PBX samples. The pyrolysis conditions were examined and optimized. A dependency was found between the sample loading (mass) and the position of the samples in a PCA score plot and indicates that control of the sample loading is important in obtaining reproducible results. For PBX samples an optimum pyrolysis temperature was determined around 540°C, close to the previous selected pyrolysis temperature of 610°C. In examining the pyrolysis at lower temperatures it was found that RDX or HMX is pyrolyzed independently from the binder. It appeared that PBX samples were inhomogeneous despite a thorough mixing of the constituents during preparation.

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A new method for solvent-free application of polymers and inorganic materials to ferromagnetic wires used for pyrolysis-capillary gas chromatographic studies

Cited by 33 publications

References 3 publications

Decay and composition of the hemichordate Rhabdopleura: implications for the taphonomy of graptolites

Decay and composition of the hemichordate Rhabdopleura: implications for the taphonomy of graptolites

Identification of C2C4 alkylated benzenes in flash pyrolysates of kerogens, coals and asphaltenes

Characterization of plastic‐bonded explosives by pyrolysis gas chromatography and multivariate data analysis. Part I: Setup of the method

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