Voltammetric study of the boric acid–salicylaldehyde–H-acid ternary system and its application to the voltammetric determination of boron

We fully elucidated the three-component reaction kinetics and thermodynamics of a boric acid complex with H-acid and salicylaldehyde using voltammetry.

Download Full-text

The fluorimetric determination of boron by means of the boric acid—morin—oxalic acid complex in anhydrous acetic acid medium

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)82339-4 ◽

1977 ◽

Vol 90 ◽

pp. 339-341 ◽

Cited By ~ 6

Author(s):

Włodzimierz Tkacz ◽

Leon Pszonicki

Keyword(s):

Acetic Acid ◽

Oxalic Acid ◽

Boric Acid ◽

Acid Medium ◽

Fluorimetric Determination ◽

Acetic Acid Medium ◽

Acid Complex ◽

Anhydrous Acetic Acid

Download Full-text

Spectrofluorometric Determination of Lasalocid Sodium in Finished Feeds and Premixes

Journal of AOAC INTERNATIONAL ◽

10.1093/jaoac/57.3.636 ◽

1974 ◽

Vol 57 (3) ◽

pp. 636-641

Author(s):

Modest Osadca ◽

Mercedes Araujo

Keyword(s):

Standard Deviation ◽

Ethyl Acetate ◽

Boric Acid ◽

Chemical Method ◽

Sodium Concentration ◽

Acid Complex ◽

Average Recovery ◽

Spectrofluorometric Determination ◽

Coefficients Of Variation

Abstract A simple, rapid, and sensitive chemical method is described for determining lasalocid sodium in finished poultry feeds and premixes. The drug is extracted with ethyl acetate directly from premixes and after a brief treatment with pH 4.7 buffer from finished feeds. Lasalocid sodium concentration is measured spectrofluorometrically and a correction for nonspecific fluorescence is determined after formation of a lasalocid- boric acid complex. Replicate assays of typical poultry mashes and pellets containing about 0.0075% lasalocid sodium yielded coefficients of variation of 2.8 to 5.0%. Average recovery of lasalocid sodium added in the laboratory at 0.0037, 0.0075, and 0.0112% was 90% with a pooled standard deviation of ±1.86%.

Download Full-text

Implementation of Metallic Film Electrodes for Catalytic Adsorptive Stripping Voltammetric Determination of Germanium(IV)

Chemistry Proceedings ◽

10.3390/csac2021-10484 ◽

2021 ◽

Vol 5 (1) ◽

pp. 7

Author(s):

Agnieszka Królicka ◽

Jerzy Zarębski ◽

Andrzej Bobrowski

Keyword(s):

Metallic Film ◽

Voltammetric Determination ◽

Ethylene Diamine ◽

Bismuth Film ◽

Carbon Supports ◽

Acid Complex ◽

Bismuth Film Electrodes ◽

Screen Printed

In the present work, it has been shown that bismuth film electrodes deposited on screen-printed carbon supports could be successfully used to provide well-shaped, sensitive and reproducible catalytic adsorptive stripping signals of Ge(IV) in the presence of catechol and V(IV)-HEDTA (HEDTA-N-hydroxyethyl-ethylene diamine-triacetic acid) complex.

Download Full-text

Voltammetric Determination of Boric Acid Using the Ternary Complexation System with Salicylaldehyde and H-Acid

Electroanalysis ◽

10.1002/elan.201200527 ◽

2013 ◽

Vol 25 (2) ◽

pp. 387-393 ◽

Cited By ~ 3

Author(s):

Kô Takehara ◽

Takao Fujimori ◽

Kei Inagi ◽

Mari Kajiwara ◽

Yoshikazu Harata ◽

...

Keyword(s):

Boric Acid ◽

Voltammetric Determination ◽

Ternary Complexation

Download Full-text

Adsorptive stripping voltammetric determination of vanadium as chloranilic acid complex

Analytical and Bioanalytical Chemistry ◽

10.1007/s0021663560259 ◽

1996 ◽

Vol 356 (3-4) ◽

pp. 259-262

Author(s):

Sylvia Sander ◽

G�nter Henze

Keyword(s):

Voltammetric Determination ◽

Chloranilic Acid ◽

Acid Complex

Download Full-text

Flow-injection determination of boric acid concentration with conductometric detection

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2018-84-12-20-24 ◽

2018 ◽

Vol 84 (12) ◽

pp. 20-24

Author(s):

V. S. Gursky ◽

E. Yu. Kharitonova

Keyword(s):

Boric Acid ◽

Flow Injection ◽

Nuclear Power ◽

Sample Volume ◽

Primary Circuit ◽

Acid Complex ◽

Donnan Dialysis ◽

Fixed Sample ◽

Conductometric Detection

The flow-injection determination of boric acid with conductometric detection in technological environments of the primary circuit of WWER-type nuclear power plant is described. The method consists in periodical dosing a fixed sample volume into the flow of the mannitol solution. As a of the Formation of an anionic boric acid complex with mannitol and equivalent amount of hydroxonium ions, results in an abrupt increase in the electrical conductivity, which is recorded by a conductometric detector. The hydraulic and measuring circuits of the analyzer are implemented using standard ionochromatographic equipment. It is shown than in the concentration range of the analyte 1 – 16 g/liter, the correcting additives of ammonium and potassium hydroxides do not interfere with the results of the analysis. To eliminate the interfering effect of correcting additives at low concentrations of boric acid (0.2 – 1.0 g/liter) we propose to use a Donnan dialysis through a cation exchange membrane. Optimal conditions of the analysis are specified and the metrological characteristics are determined. At a concentration of boric acid of 0.2 g/liter, the standard deviation does not exceed 2%.

Download Full-text