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Influence of concentration, time and method of application of citric acid and sodium citrate in root conditioning.
(2012-05-01)
The aim of this study was to establish the parameters of concentration, time and mode of application of citric acid and sodium citrate in relation to root conditioning. A total of 495 samples were obtained and equally ...
2,4-Dichlorophenoxyacetic acid (2,4-D) degradation promoted by nanoparticulate zerovalent iron (nZVI) in aerobic suspensions
(2013-05-30)
Reactive species generated by Fe0 oxidation promoted by O2 (catalyzed or not by ligands) are able to degrade contaminant compounds like the herbicide 2,4-dichlorophenoxyacetic acid. The degradation of 2,4-D was influenced ...
Influence of lactic acid and acetic acid on Salmonella spp. growth and expression of acid tolerance-related genes
(Food Research International, 2018)
Sister-chromatid exchanges in β-thalassaemic patients under conditions of in vivo and in vitro depletion of folic acid
(1992-07-02)
In order to investigate the effect of folate depletion, lymphocyte sister-chromatid exchange (SCE) rates were compared among homozygous β-thalassaemic patients with low folic acid levels, heterozygous β-thalassaemic patients ...
Smear layer removal for collagen fiber exposure after citric acid conditionings
(2010-12-01)
Aim: The aim of the present study was to compare the removal of the smear layer and exposure of collagen fibers of the root surface following the application of five citric acid solution concentrations. Methods and Materials: ...
Solvent-free multicomponent synthesis of 2-arylpyridines using p-sulfonic acid calix[6]arene as a reusable catalyst
(Comptes Rendus Chimie, 2018)
Radionuclide concentrations in raw and purified phosphoric acids from Brazil and their processing wastes: implications for radiation exposures
(Springer, 2012-02-01)
Radionuclides from the U and Th natural series are present in alkaline rocks, which are used as feedstock in Brazil for the production of raw phosphoric acid, which can be considered as a NORM (naturally occurring radioactive ...
Iron determination by FAAS in fish feed and feces after ultrasound-assisted extraction
(2009-01-01)
This paper proposes a method to determine iron in samples of fish feed and feces using ultrasound in the extraction of the analyte and in subsequent quantification by flame atomic absorption spectrometry. Using HCl 0.10 ...