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Sensitized schiff's reagent as an acid-base indicator
Analytica Chimica Acta, 1954Abstract The sensitized Schiff's reagent has been used as an indicator in the neutralization of strong acids by means of strong or weak bases. (1) Since the acid to alkali transition is much sharper than the reverse process, the titration is best done by adding alkali to the acid.
A. Ghose, S.N. Bhattacharya
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Using Silica Gel Beads to Dispense Indicators and Reagents
Journal of Chemical Education, 1995Silica gel beads which have adsorbed certain chemical reagents such as acid-base indicators, detecting reagents, color-producing metal ions, and organic dyestuffs can be used in classrooms and field studies either as teaching aids or for students' laboratory work.
Akiko Furuhashi +2 more
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Ion-Selective Optode Nanospheres as Heterogeneous Indicator Reagents in Complexometric Titrations
Analytical Chemistry, 2015Traditionally, optical titrations of inorganic ions are based on a rapid and visible color change at the end point with water-soluble organic dyes as indicators. Adequate selectivity is required for both the indicator and the complexing agent, which is often limited.
Zhai, Jingying +2 more
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Journal of Hazardous Materials, 2021
Fenton oxidation can effectively improve the dewaterability of aged sludge. Quantification of the addition of optimal reagents is central to the conditioning and dewatering of aged sludge. Improving the accuracy of quantification is significant to promote cost effectiveness.
Xun Tan +8 more
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Fenton oxidation can effectively improve the dewaterability of aged sludge. Quantification of the addition of optimal reagents is central to the conditioning and dewatering of aged sludge. Improving the accuracy of quantification is significant to promote cost effectiveness.
Xun Tan +8 more
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Formazan-Containing Solid-Phase Reagent Indicator Systems for Environmental Analysis
Russian Journal of General Chemistry, 2018Research results on synthesis and application of solid-phase reagents containing formazan groups were considered. The influence of the composition and structure of immobilized organic ligands on the sorption and analytical properties of the test-tools obtained were discussed.
Maslakova, T. I. +3 more
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Preparation of reagent indicator papers with silver triangular nanoplates for chemical analysis
Moscow University Chemistry Bulletin, 2017An impregnation method to prepare reagent indicator papers with silver triangular nanoplates (TNPs) is developed. The conditions for obtaining modified papers (type of paper, method for applying TNPs, and drying conditions) allowing for an acceptably uniform distribution of the TNPs are chosen. The spectral characteristics of the prepared materials are
Vladimir V. Apyari +5 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.
Michael A. Leonard, Marie M. Ferris
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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.
Michael A. Leonard, Marie M. Ferris
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Singlet Oxygen in Plants—Its Significance and Possible Detection with Double (Fluorescent and Spin) Indicator Reagents [PDF]
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.
Éva Hideg +4 more
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Analytica Chimica Acta, 1972
Abstract Fluorescence-quenched solutions of palladium(II)-calcein and palladium(II)-calcein blue are shown to be sensitive spray reagents for the detection and in situ determination of organothiophosphorus insecticides on thin-layer chromatograms.
B. Nowlan, Roland W. Frei, T.F. Bidleman
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Abstract Fluorescence-quenched solutions of palladium(II)-calcein and palladium(II)-calcein blue are shown to be sensitive spray reagents for the detection and in situ determination of organothiophosphorus insecticides on thin-layer chromatograms.
B. Nowlan, Roland W. Frei, T.F. Bidleman
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