Results 261 to 270 of about 153,076 (312)
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Photochemistry and Photobiology, 2006
ABSTRACTDirect detection of reactive oxygen species (ROS), especially singlet oxygen, in plants under stress conditions is of special importance, not only to identify primary events of oxidative damage, but also in studies exploring the potential role of ROS as signal molecules.
Eva, Hideg +4 more
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ABSTRACTDirect detection of reactive oxygen species (ROS), especially singlet oxygen, in plants under stress conditions is of special importance, not only to identify primary events of oxidative damage, but also in studies exploring the potential role of ROS as signal molecules.
Eva, Hideg +4 more
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The Analyst, 1986
Water-soluble azo, phthalein, sulphonphthalein and anthraquinone indicators and reagents were subjected to low-voltage electrophoresis on cellulose acetate sheets at pH 2–12. All dyes except low-sulphonated azo dyes yielded one or more sharp bands showing good mobility and resolution over some range of pH values.
Marie M. Ferris, Michael A. Leonard
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Water-soluble azo, phthalein, sulphonphthalein and anthraquinone indicators and reagents were subjected to low-voltage electrophoresis on cellulose acetate sheets at pH 2–12. All dyes except low-sulphonated azo dyes yielded one or more sharp bands showing good mobility and resolution over some range of pH values.
Marie M. Ferris, Michael A. Leonard
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Journal of Chemical & Engineering Data, 2012
To determine the possibility of improvement of the process of CO2 removal by absorption with alkanolamines, densities, viscosities, and refractive indices of four aqueous alkanolamine solutions (water + monoisopropanolamine (MIPA), diisopropanolamine (DIPA), triisopropanolamine (TIPA), or diethanolamine (DEA)) were measured in the temperature range ...
Vuk D. Spasojević +3 more
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To determine the possibility of improvement of the process of CO2 removal by absorption with alkanolamines, densities, viscosities, and refractive indices of four aqueous alkanolamine solutions (water + monoisopropanolamine (MIPA), diisopropanolamine (DIPA), triisopropanolamine (TIPA), or diethanolamine (DEA)) were measured in the temperature range ...
Vuk D. Spasojević +3 more
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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2020
Indirect (IBil), direct (DBil) and total (TBil) bilirubin are important clinical indicators of hepatobiliary diseases, which require rapid detection in diagnosis and treatment. IBil and DBil have a structural relationship with several macromolecules in hepatobiliary metabolism.
Hui, Tan +4 more
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Indirect (IBil), direct (DBil) and total (TBil) bilirubin are important clinical indicators of hepatobiliary diseases, which require rapid detection in diagnosis and treatment. IBil and DBil have a structural relationship with several macromolecules in hepatobiliary metabolism.
Hui, Tan +4 more
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Analytica Chimica Acta, 1977
Abstract Chlorpromazine hydrochloride (CPA) has been tested as indicator in the titration of molybdenurn(V) with cerium(IV)sulphate at room temperature in sulphuric acid medium. It gives a sharp, reversible colour change from colourless to dark-red at the equivalence point.
H. Puzanowska-Tarasiewicz +2 more
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Abstract Chlorpromazine hydrochloride (CPA) has been tested as indicator in the titration of molybdenurn(V) with cerium(IV)sulphate at room temperature in sulphuric acid medium. It gives a sharp, reversible colour change from colourless to dark-red at the equivalence point.
H. Puzanowska-Tarasiewicz +2 more
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The Journal of Organic Chemistry, 2002
9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint.
Martina E, Bowen +2 more
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9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint.
Martina E, Bowen +2 more
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The Journal of Organic Chemistry, 1989
Description et utilisation d'une methode volumetrique de dosage de reactifs ...
Yoshio Aso +3 more
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Description et utilisation d'une methode volumetrique de dosage de reactifs ...
Yoshio Aso +3 more
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Metallurgist, 2013
Features are established for formation of flux-cored wire spatial movement trajectories in relation to its parameters and rate of introduction, and possible areas of filler release are identified. A procedure is developed and a nomogram is constructed for evaluating existing technologies of steel treatment with flux-cored wire containing calcium ...
V. V. Belousov +4 more
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Features are established for formation of flux-cored wire spatial movement trajectories in relation to its parameters and rate of introduction, and possible areas of filler release are identified. A procedure is developed and a nomogram is constructed for evaluating existing technologies of steel treatment with flux-cored wire containing calcium ...
V. V. Belousov +4 more
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Fresenius' Zeitschrift für analytische Chemie, 1967
A rapid titration procedure is recommended for the estimation of Na2S2O4 in commercial sodium dithionite (sodium hydrosulphite, sodium hyposulphite) and in aqueous solutions of this compound, using potassium hexacyanoferrate(III) as reagent and methylene blue as indicator.
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A rapid titration procedure is recommended for the estimation of Na2S2O4 in commercial sodium dithionite (sodium hydrosulphite, sodium hyposulphite) and in aqueous solutions of this compound, using potassium hexacyanoferrate(III) as reagent and methylene blue as indicator.
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Journal of Liquid Chromatography & Related Technologies, 2002
ABSTRACT A robust, stability-indicating isocratic HPLC method for the quantitation of cromolyn sodium and its related substances was developed and validated. The two known synthetic impurities likely to be present in cromolyn drug substance, designated as impurity 1 and impurity 2, are non-ionic compounds while cromolyn is a weak acid.
M. Barnes, R. Mansfield, S. Thatcher
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ABSTRACT A robust, stability-indicating isocratic HPLC method for the quantitation of cromolyn sodium and its related substances was developed and validated. The two known synthetic impurities likely to be present in cromolyn drug substance, designated as impurity 1 and impurity 2, are non-ionic compounds while cromolyn is a weak acid.
M. Barnes, R. Mansfield, S. Thatcher
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