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Reagent generation assisted by ultrasonic irradiation
(Sociedade Brasileira de Qu??mica, 2003-03)
Reagent generation assisted by ultrasonic irradiation
(Sociedade Brasileira de Química, 2003-03)
In this work, the potential of reagent generation assisted by ultrasonic irradiation was evaluated for Cr(III) oxidation and arsine formation. Free radical formation by sonolysis of aqueous solutions was evaluated. The ...
Deleterious effect of ammonium extraction from soil assisted by ultrasound
(Elsevier, 2004)
Ultrasound has been used to assist extraction procedures from solid samples based on the decrease of gradient concentration in the vicinity
of particulate matter and the microjet produced during cavitation. In the present ...
Influence of ultrasonic waves on phosphate determination by the molybdenum blue method
(2002)
Polymeric bonds between molybdate monomeric ions in acidic medium were broken by 40 kHz ultrasonic wave irradiation, improving the reaction kinetics with o-phosphate in the presence of ascorbic acid. It could be assumed ...
Effects of ultrasonic irradiation on the spectrophotometric determination of nickel with dimethylglyoxime
(2001)
Influence of ultrasonic waves in the spectrophotometric determination of nickel with dimethylglyoxime (DMG) was investigated and interferences from foreign species such as Co2+, Fe2+ and Cu2+ were studied. A 1.5-fold ...