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Mass fragmentographic analysis of homovanillic acid and its homoiso analogue in cerebrospinal fluid using the α-dideutero acid as internal standard

The two fragments set into focus were the molecular ions of authentic HVA and HVA-d2 respectively. The experimental error was less than 4%. The recovery of small amounts of authentic HVA added to CSF was satisfactory.

出版机构:Springer Verlag

刊物名称:Psychopharmacology

出版时间:1974

ISSN:0033-3158

数据源:报刊文摘

Blood and urine levels of N,N-dimethyltryptamine following administration of psychoactive dosages to human subjects

AbstractPsychoactive doses (0.7 mg/kg) of the hallucinogen N,N-dimethyltryptamine (DMT) were administered intramuscularly to 11 normal subjects.

出版机构:Springer Verlag

刊物名称:Psychopharmacology

出版时间:1974

ISSN:0033-3158

数据源:报刊文摘

The Use of a Solid Sampler in Chemical Ionization Mass Spectrometry for the Determination of Compounds Unstable Under Gas-Liquid Chromatographic Conditions-Analysis of Tolbutamide from Biological Fluid

imple method for the quantification of tolbutamide in biological fluids is presented. It is suggested that the method can be applied to some compounds that are unstable under gas liquid chromatographic conditions.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:1974

ISSN:0003-2719

数据源:报刊文摘

A GC-MS Procedure for the Measurement of Dopamine in Mouse Striatal Tissue

gas chromatographic-mass spectrometric (GC-MS) method for measuring dopamine levels in brain tissue has been developed. Deuterated dopamine was prepared by exchange of the aromatic hydrogens with deuterium.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:1974

ISSN:0003-2719

数据源:报刊文摘

Separation and Analysis of o.p'-DDD and its Lipophilic Metabolite, O.P'-DDE, in Tissue, Faeces and Plasma

n analytical procedure based on electron capture gas chromatography for the determination of o,p'-DDD, a drug used for the treatment of Cushing's syndrome, is presented. Detection of a metabolite, identified as o,p'-DDE, is also described.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:1974

ISSN:0003-2719

数据源:报刊文摘

A Simple Scan- and Display-Control for Magnetic Sector Mass Spectrometers

Magnetically scanned sector mass spectrometers yield excellent spectra, covering a wide mass range. The spectral display is most reproducible if the magnet is cycled continuously in order to establish a constant hysteresis history. We have adapted a single sweep spectrometer to continuous cycling.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:1974

ISSN:0003-2719

数据源:报刊文摘

Simultaneous Plutonium and Uranium Isotopic Analysis from a Single Resin Bead - A Simplified Chemical Technique for Assaying Spent Reactor Fuels

Isotopic measurements are essentially free of isobaric interferences and fission product contamination in the mass spectrometer is eliminated. A very small aliquot of dissolver solution containing 10-6 g of U and 10-8 g of Pu is sufficient sample for chemically preparing several resin beads.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:1974

ISSN:0003-2719

数据源:报刊文摘

The Application of SF6 in the Geochemical Research

For mass spectrometric measurements of ?31S, pure sulphur hexafluoride was prepared quantitatively from different mineral sulphides by the reaction with elemental fluorine under pressure. The results of ?31S measurements on SF6 samples were confirmed by comparison of ?

出版机构:Taylor & Francis

刊物名称:Isotopes in Environmental and Health Studies

出版时间:1974

ISSN:1025-6016

数据源:报刊文摘

Bestimmung der Isotopenverteilung in nicht statistisch mit 15N markierten Hydrazinsalzen durch Oxydation zu Stickstoff

Es wurde ein Analysenverfahren ausfearbeitet, das die Bestimmung der Isotopenverteilung in 15N-markiertem Hydrazin ermoglicht, die nach dem bisherigen Standardverfahren (Oxydation mit CuO zu Stickstoff) scheiterte. Die Isotopenverteilung kann durch Oxydation des Hydrazins mit Jodlosung bzw.

出版机构:Taylor & Francis

刊物名称:Isotopes in Environmental and Health Studies

出版时间:1974

ISSN:1025-6016

数据源:报刊文摘

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