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Pyrite accumulation in salt marshes in the Eastern Scheldt, southwest Netherlands

AbstractPore water composition, pyrite distribution and pyrite crystal morphology of sediments from salt marshes in the Eastern Scheldt, southwestern Netherlands, were examined from July 1984 to October 1986.Hydrology and marsh vegetation were the chief determinants of pyrite accumulation.

出版机构:Springer Netherlands

刊物名称:Biogeochemistry

出版时间:1990

ISSN:0168-2563

数据源:报刊文摘

Effect of acrylamide concentration on the kinetics of oxidation of tartaric acid by cerium(IV) in sulfuric-perchloric acid media

AbstractThe kinetics of oxidation of tartaric acid by Ce(IV) in the absence and presence of acrylamide has been investigated spectrophotometrically in aqueous H2SO4–HClO4 media at a constant ionic strength 2.0M and 25°C.

出版机构:Springer US

刊物名称:Journal of Solution Chemistry

出版时间:1990

ISSN:0095-9782

数据源:报刊文摘

Differential approach to treatment of the stress syndrome depending on stages of the process

Without Abstract

出版机构:Springer US

刊物名称:Bulletin of Experimental Biology and Medicine

出版时间:1990

ISSN:0007-4888

数据源:报刊文摘

Control of Mn status and infection rate by genotype of both host and pathogen in the wheat take-all interaction

AbstractTake-all is a world-wide root-rotting disease of cereals. The causal organism of take-all of wheat is the soil-borne fungus Gaeumannomyces graminis var tritici (Ggt).

出版机构:Springer Netherlands

刊物名称:Plant and Soil

出版时间:1990

ISSN:0032-079X

数据源:报刊文摘

Kinetics and mechanism of oxidation of acetanilide by quinquevalent vanadium in acid medium

SummaryThe kinetics of the oxidation of acetanilide with vanadium(V) in sulphuric acid medium at constant ionic strength has been studied. The reaction is first order with oxidant. The order of reaction in acetanilide varies from one to zero.

出版机构:Springer Vienna

刊物名称:Monatshefte fuer Chemie/Chemical Monthly

出版时间:1990

ISSN:0026-9247

数据源:报刊文摘

Kinetics and mechanism of oxidative deoximation of benzaldoxime by diperiodatocuprate(III) intert.-butanol — Water medium

SummaryThe kinetics of oxidation of benzaldoxime by diperiodatocuprate(III) (DPC) was studied spectrocolorimetrically at 414 nm intert.-butanol — water medium. The order in [DPC] and that in [benzaldoxime] was unity.

出版机构:Springer Vienna

刊物名称:Monatshefte fuer Chemie/Chemical Monthly

出版时间:1990

ISSN:0026-9247

数据源:报刊文摘

Biogeochemistry of iron in an acidic lake

AbstractIn this paper, the fate of iron in Lake Cristallina, an acidic lake in the Alps of Switzerland, is discussed. A simple conceptual model is developed in order to explain the observed diel variation in dissolved iron(II) concentration.

出版机构:SP Birkhäuser Verlag Basel

刊物名称:Aquatic Sciences

出版时间:1990

ISSN:1015-1621

数据源:报刊文摘

Methane consumption in two temperate forest soils

AbstractForest soils are thought to be an important sink for atmospheric methane. To evaluate methane consumption,14C-labeled methane was added to the headspace of intact soil cores collected from a mixed mesophytic forest and from a red spruce forest located in the central Appalachian Mountains.

出版机构:Springer Netherlands

刊物名称:Biogeochemistry

出版时间:1990

ISSN:0168-2563

数据源:报刊文摘

Determination of Methimazole and Carbimazole Using Polarography and Voltammetry

nodic waves of methimazole (I) (1-methylimidazole-2-thiol) and carbimazole (II) (1-ethoxycarbonyl-3-methyl-2-thio-4-imidazoline) on mercury electrodes correspond to mercury salt formation.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:1990

ISSN:0003-2719

数据源:报刊文摘

STUDIES ON BENZO[C]THIOPHENES

empts for the synthesis of 5-tert-butylbenzo[c]thiophene 1c are described. The preparation of pure 1c by heating of sulfoxide 5 with alumina failed. However 1c could be generated in situ and trapped with N-phenylmaleimide 6.

出版机构:Taylor & Francis

刊物名称:Phosphorus, Sulfur, and Silicon and the Related Elements

出版时间:1990

ISSN:1042-6507

数据源:报刊文摘