A tensammetric study of polyacrylamides, including their determination

Phase-sensitive tensammetry is shown to be a convenient and useful way to analyse polyacrylamides and associated derivatives (pams) in dilute aqueous solutions. Standard curves were obtained with ranges varying from 9 to 25 ppm and limits of detection varying from 0.7 to 2 ppm. Ways to change the range and sensitivity are discussed and demonstrated. Typical interferences and their effects are tabulated, and the analysis of pams in coal washings is discussed. The analysis of certain mixtures of polyacrylamides is shown to be possible.

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The reactions of oligoalcohols with arsenic, arsenous, boric and germanic acids

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19802645 ◽

1980 ◽

Vol 45 (10) ◽

pp. 2645-2655 ◽

Cited By ~ 9

Author(s):

Antonín Mikan ◽

Miloš Bartušek

Keyword(s):

Aqueous Solutions ◽

Equilibrium Constants ◽

Dilute Aqueous Solutions

The reactions of sorbitol, mannitol, adonitol, dulcitol, glucose and glycerol with H3AsO4, H3AsO3, H3BO3 and GeO2 acids in dilute aqueous solutions were studied by potentiometric neutralization titrations. The formation of the following chelates was demonstrated: As(V)L3-, As(III)L(OH)2-, HAs(III)L(OH)2, BL2-, GeL2(OH)- and GeL32- and the equilibrium constants for their formation were found. Conditions for formation of these chelates of organic oligohydroxy compounds are discussed.

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Study of potential oscillations during reaction of an aluminium single crystal with an aqueous KOH solution

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19900345 ◽

1990 ◽

Vol 55 (2) ◽

pp. 345-353 ◽

Cited By ~ 4

Author(s):

Ivan Halaša ◽

Milica Miadoková

Keyword(s):

Aqueous Solutions ◽

Single Crystal ◽

Single Crystals ◽

Periodic Potential ◽

Optimum Conditions ◽

Potential Oscillations ◽

Dilute Aqueous Solutions ◽

Experimental Findings ◽

Kinetics Of

The authors investigated periodic potential changes measured on oriented sections of Al single crystals during spontaneous dissolution in dilute aqueous solutions of KOH, with the aim to find optimum conditions for the formation of potential oscillations. It was found that this phenomenon is related with the kinetics of the reaction investigated, whose rate also changed periodically. The mechanism of the oscillations is discussed in view of the experimental findings.

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The Adsorption of n-Aliphatic Alcohols from Dilute Aqueous Solutions on RNH3-Montmorillonites. II. Interlamellar Association of the Adsorbate

Clays and Clay Minerals ◽

10.1346/ccmn.1979.0270509 ◽

1979 ◽

Vol 27 (5) ◽

pp. 377-386 ◽

Cited By ~ 14

Author(s):

Michel S. Stul

Keyword(s):

Aqueous Solutions ◽

Aliphatic Alcohols ◽

Dilute Aqueous Solutions

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HPLC Analysis of Oxytetracycline Residues in Honey

Journal of Food Protection ◽

10.4315/0362-028x-49.5.383 ◽

1986 ◽

Vol 49 (5) ◽

pp. 383-388 ◽

Cited By ~ 19

Author(s):

PETER SPORNS ◽

SUET KWAN ◽

LAWRENCE A. ROTH

Keyword(s):

High Performance Liquid Chromatography ◽

Liquid Chromatography ◽

Aqueous Solutions ◽

High Performance ◽

Hplc Analysis ◽

Extraction Procedure ◽

Hplc Method ◽

Limits Of Detection ◽

Ph Values ◽

Double Extraction

Oxytetracycline (OTC), also known commercially as Terramycin, was determined to be more stable in honey than in buffered aqueous solutions at similar pH values and temperatures. A rapid high performance liquid chromatography (HPLC) method was developed to detect and quantitate OTC using a 1:1 dilution (wt/wt) of honey samples in water. Using 355 nm as the wavelength of detection, amounts as low as 0.5 μg/ml could be detected in the above solution. The limits of detection were lowered considerably by a double extraction procedure.

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Self-assembly of the Thermosensitive and pH-Sensitive Pentablock Copolymer PNIPAMx-b-P(tBA-co-AA)90-b-PPO36-b-P(tBA-co-AA)90-b-PNIPAMx in Dilute Aqueous Solutions

Macromolecules ◽

10.1021/acs.macromol.1c00627 ◽

2021 ◽

Author(s):

Chao Lv ◽

Jia Gao ◽

Kun An ◽

Jingjing Nie ◽

Junting Xu ◽

...

Keyword(s):

Aqueous Solutions ◽

Self Assembly ◽

Ph Sensitive ◽

Dilute Aqueous Solutions ◽

Pentablock Copolymer

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Adsorptive Separation of Acetic Acid from Dilute Aqueous Solutions: Adsorption Kinetic, Isotherms, and Thermodynamic Studies

Journal of Chemical & Engineering Data ◽

10.1021/acs.jced.5b00481 ◽

2015 ◽

Vol 61 (1) ◽

pp. 213-219 ◽

Cited By ~ 13

Author(s):

Huanhuan Zhang ◽

Yuming Wang ◽

Peng Bai ◽

Xianghai Guo ◽

Xiuxiu Ni

Keyword(s):

Acetic Acid ◽

Aqueous Solutions ◽

Adsorption Kinetic ◽

Thermodynamic Studies ◽

Adsorptive Separation ◽

Dilute Aqueous Solutions

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UV-visible Absorption Study of the Self-association of Non-ionic Chromonic Triphenylenes TP6EOnM (n = 2, 3, 4) in Dilute Aqueous Solutions: Impact of Chain Length on Aggregation

CHIMIA International Journal for Chemistry ◽

10.2533/chimia.2015.520 ◽

2015 ◽

Vol 69 (9) ◽

pp. 520-523 ◽

Cited By ~ 3

Author(s):

Antoine Herbaut ◽

Etienne Baranoff

Keyword(s):

Aqueous Solutions ◽

Chain Length ◽

The Self ◽

Absorption Study ◽

Visible Absorption ◽

Dilute Aqueous Solutions ◽

Uv Visible ◽

Self Association

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Motions of water molecules in dilute aqueous solutions of tertiary butyl alcohol; a neutron scattering study of hydrophobic hydration

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1970.0174 ◽

1970 ◽

Vol 319 (1537) ◽

pp. 189-208 ◽

Cited By ~ 28

Keyword(s):

Aqueous Solutions ◽

Water Structure ◽

Hydrophobic Hydration ◽

Step Length ◽

Solute Concentration ◽

Butyl Alcohol ◽

Tertiary Butyl ◽

Self Diffusion ◽

Dilute Aqueous Solutions ◽

Neutron Scattering Study

Cold neutron inelastic scattering experiments have been performed on dilute aqueous solutions of (CD 3 ) 3 COH and of solutions of (CH 3 ) 3 COH in D 2 O at 21 °C. From the broadening of the quasi-elastic peak and independently determined self-diffusion coefficients ( D ), diffusive lifetimes ( c ) of H 2 O molecules have been calculated as functions of solute concentration. The product Dc is insensitive to concentration, giving a mean diffusion step length of 0.14 nm. The inelastic portion of the spectrum, reflecting lattice-like hydrogen bonding modes indicates that the solute enhances the water ‘structure’ but that such structure bears no resemblance to ice.

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