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DNA Base Damage in Chromatin of γγ-Irradiated Cultured Human Cells

Prior to analysis of chromatin samples, experimental conditions for acidic hydrolysis were optimized by determining the relative molar response factors of modified bases under non-acidic and acidic conditions, and their release from DNA under various acidic conditions.

出版机构:Informa Healthcare

刊物名称:Free Radical Research

出版时间:1992

ISSN:1071-5762

数据源:报刊文摘

Influence of agricultural soil management on humus composition and dynamics: Classical and modern analytical techniques

Thermograms and Py-FI mass spectra of whole-soil samples from field plots that under very different management show significant differences in humus composition, which may be due to varying stages of decomposition of plant residues and humus genesis.

出版机构:Springer Netherlands

刊物名称:Plant and Soil

出版时间:1992

ISSN:0032-079X

数据源:报刊文摘

Analysis of Hydroxyurea in Capsules and Aqueous Solution and Stability Study with Capillary Gas Chromatography and Thermionic (N–P) Specific Detection

AbstractA method for the analysis of hydroxyurea (HU) in solutions, powder, or capsules by use of capillary gas chromatography with N–P thermionic specific detection is described.

出版机构:Springer US

刊物名称:Pharmaceutical Research

出版时间:1992

ISSN:0724-8741

数据源:报刊文摘

GC-MS study of the imide-amide rearrangement

AbstractThe imide—amide rearrangement of trialkyl arylimidophosphates by the action of catalytic amounts of boron trifluoride etherate proceeds at least partially by an intermolecular mechanism.

出版机构:Springer US

刊物名称:Russian Chemical Bulletin

出版时间:1992

ISSN:1066-5285

数据源:报刊文摘

Positive/negative liquid secondary ion mass spectrometry ofLn-EDTA (1:1) complexes. Formation of molecular ion adducts with neutral species of the matrix orLn-EDTA

SummaryThe mass spectra of 1:1 complexes ofEDTA with lanthanide cations (Ln=Sm, Eu, Gd, Tb or Dy) upon positive/negative LSIMS are presented.

出版机构:Springer Vienna

刊物名称:Monatshefte fuer Chemie/Chemical Monthly

出版时间:1992

ISSN:0026-9247

数据源:报刊文摘

Mass spectrometric study of thermal stability of copper(II) bis(dipivaloylmethanate) vapour

The temperature range of stability of the vapour of the complex in vacuum was determined, as were those of its mixtures with oxygen in different proportions. The temperature dependence of the rate constant of the thermolysis of (Cu(dpm)2) vapour was obtained.

出版机构:Springer Netherlands

刊物名称:Journal of Thermal Analysis and Calorimetry

出版时间:1992

ISSN:1388-6150

数据源:报刊文摘

Initial formation of soil organic matter from grass residues in a long-term experiment

The pyrolysis-field ionization mass spectra of the two grass species Phleum pratense and Lolium multiflorum were similar insofar as signals characteristic of lignin dimers and phytosterols dominated at higher masses and for mono-and polysaccharides at lower masses.

出版机构:Springer Verlag

刊物名称:Biology and Fertility of Soils

出版时间:1992

ISSN:0178-2762

数据源:报刊文摘

Simultaneous Quantitation of Delta-9-tetrahydrocannabinol (THC) and 11-Nor-9-carboxy-delta-9-tetrahydrocannabinol (THC-COOH) in Serum by GC/MS Using Deuterated Internal Standards and Its Application t

A new procedure for the simultaneous detection of delta-9-tetrahydrocannabinol (THC) and its major metabolite, 11-nor-9-carboxy-delta-9-tetrahydrocannabinol (THC-COOH) in serum has been evaluated. The method combines rapid, efficient, solid-phase extraction and simple derivatization by methylation.

出版机构:Blackwell Publishing Ltd

刊物名称:Journal of Forensic Sciences

出版时间:1992

ISSN:0022-1198

数据源:报刊文摘

Ion Mobility Spectrometry of Drugs of Abuse in Customs Scenarios: Concentration and Temperature Study

A custom-built ion mobility spectrometer has been used to obtain the IMS spectra of cocaine, heroin, amphetamine sulfate and LSD at different drug concentrations and desorption temperatures.

出版机构:Blackwell Publishing Ltd

刊物名称:Journal of Forensic Sciences

出版时间:1992

ISSN:0022-1198

数据源:报刊文摘

Long-term double-blind study on the influence of dietary fibres on faecal bile acid excretion in juvenile ulcerative colitis

All patients were in remission since 0.5-2 years and orally treated with sulphasalazine. The average intake of either fibres was 16 g day-1. Faecal samples were collected (72 h) before and after each fibre period. Faecal water were prepared by centrifugation of faeces at 15 000 g for 2 h.

出版机构:Informa Healthcare

刊物名称:Scandinavian Journal of Clinical and Laboratory Investigation

出版时间:1992

ISSN:0036-5513

数据源:报刊文摘