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An improved procedure for flow-based turbidimetric sulphate determination based on a liquid core waveguide and pulsed flows
(ELSEVIER SCIENCE BV, 2008)
An improved flow-based procedure is proposed for turbidimetric sulphate determination in waters. The flow system was designed with solenoid micro-pumps in order to improve mixing conditions and minimize reagent consumption ...
Adsorption of sulphate ions by modification of sugarcane bagasse cellulose
(2008-11-04)
This work describes the preparation of sugarcane bagasse cellulose with zirconium oxychloride for adsorption of sulphate ions in aqueous solution. The materials were prepared by using an ammonium solution as precipitating ...
Polysaccharides from Codium species: chemical structure and biological activity. Their role as components of the cell wall
(Elsevier, 2014-05)
Polysaccharides from Codium species have drawn attention due to their high anticoagulant activity. However, many different mechanisms of action have been proposed and the structure of the active compounds was usually not ...
Microbiological Assay for the Determination of Colistin Sulphate
(Bentham Science Publ Ltd, 2014)
An expert flow system involving in-line prior assay for turbidimetric determination of chloride and sulphate in natural waters
(ELSEVIER SCIENCE BV, 2008)
A multi-pumping flow system exploiting prior assay is proposed for sequential turbidimetric determination of sulphate and chloride in natural waters. Both methods are implemented in the same manifold that provides facilities ...
Fast spectrophotometric determination of fluoride in ground waters by flow injection using partial least-squares calibration
(Elsevier Science, 2004-06)
The presence of sulphate constitutes a serious interference in the usual zirconium lake-based spectrophotometric method for the determination of fluoride in water. In this report, full spectral data have been recorded for ...
External sulphate attack on recycled concrete: Assessment of the influence of recycled aggregate
(Springer, 2020)
The performance of recycled aggregate concrete (RAC) under external sulfate attack (ESA) has not been fully clarified yet. The attached mortar on recycled aggregate particles increases the content of hydration products ...
Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Doped Polypyrrole
(2011)
In this work, polypyrrole films were electrosynthesized from aqueous media onto a graphite-epoxy resin composite electrode (GCE) using sulphate ions as dopant. Potentiostatic electrosynthesis studies were done using different ...
Sulphate-reducing bacteria associated with biocorrosion: a review
(Fundação Oswaldo Cruz. Instituto Oswaldo Cruz, 2020)