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pro vyhledávání: '"Joseph M. Levy"'
Autor:
Joseph M. Levy
Publikováno v:
Journal of High Resolution Chromatography. 17:212-216
The use of supercritical fluid technology for sample preparation and analysis in the petroleum industry will be described using various examples including: separation of petroleum fuels into hydrocarbon classes, determination of polynuclear aromatic
Publikováno v:
Journal of High Resolution Chromatography. 16:368-371
For many applications using supercritical fluid extraction (SFE), modifiers may be required.This paper will present some findings regarding the use of various modifiers including methanol, hexane, acetone, chloroform, dichloromethane, toluene, and tr
Publikováno v:
Journal of Chromatographic Science. 30:361-366
Publikováno v:
Journal of Chromatographic Science. 29:517-521
Publikováno v:
Journal of High Resolution Chromatography. 14:661-666
A key feature differentiating analytical supercritical fluid extraction (SFE) from conventional liquid extraction is the possibility of varying the solvent strength of a supercritical fluid to achieve selective extractions of specific target compound
Publikováno v:
Journal of SPINAL DISORDERS. 4:238-241
The authors discuss a patient with a large (15 x 10 x 12 cm), bony soft tissue intradural arteriovenous malformation (AVM) who presented with a 20-year history of back pain. Plain radiographs revealed a destructive lesion. Magnetic resonance imaging
Publikováno v:
Journal of High Resolution Chromatography. 13:742-747
Analysis of low concentration polymer additives has been a challenging problem. The commonly used methods of analysis involve the initial extraction of polymer additives with solvents, often in a Soxhlet apparatus, followed by liquid, size exclusion,
Publikováno v:
Journal of Computer Assisted Tomography. 14:708-711
The clinical and radiologic manifestation of neurocysticercosis are varied. Since the introduction of anticysticercal drugs, surgery is only rarely needed in treatment. During the last 2 years, we have encountered two patients with minimal symptomato
Publikováno v:
Journal of High Resolution Chromatography. 13:418-421
The usefulness and ease of utilizing supercritical fluid extraction (SFE) directly coupled to capillary gas chromatography (GC) as quantitative or qualitative analytical problem-solving tools will be demonstrated. As an alternative to conventional li
Autor:
Joseph M. Levy, Athos C. Rosselli
Publikováno v:
Quality Assurance in Environmental Monitoring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68cee8ca8d99edafed095ee0117cc453
https://doi.org/10.1002/9783527615131.ch02
https://doi.org/10.1002/9783527615131.ch02