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Desenvolvimento de procedimentos de digestão para óleos lubrificantes.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Química - PPGQ, 2005-04-29)
In this work it was developed a digestion procedure for lubricant oil based on gradual addition of sample aliquots on hot and concentrated oxidant acids. The element concentrations in the diluted digestates were determined ...
Evaluation of Lubricating Oil Preparation Procedures for the Determination of Al, Ba, Mo, Si and V by High-Resolution Continuum Source FAAS
(Japan Soc Analytical Chemistry, 2009-01-01)
Microwave-assisted acid decomposition and oil-in-water emulsification were evaluated as sample pretreatment procedures to determine Al, Ba, Mo, Si and V in lubricating oils by high-resolution continuum source flame atomic ...
Evaluation of Lubricating Oil Preparation Procedures for the Determination of Al, Ba, Mo, Si and V by High-Resolution Continuum Source FAAS
(Japan Soc Analytical Chemistry, 2009-01-01)
Microwave-assisted acid decomposition and oil-in-water emulsification were evaluated as sample pretreatment procedures to determine Al, Ba, Mo, Si and V in lubricating oils by high-resolution continuum source flame atomic ...
Analytical procedures for cadmium determination in facial make-up samples by graphite furnace AAS
(2015-01-01)
This paper describes the development of analytical procedures for the determination of cadmium in facial make-up based on line-source graphite furnace AAS (LS-GFAAS) and direct solid sampling (DSS) coupled to a high-resolution ...
Analytical procedures for cadmium determination in facial make-up samples by graphite furnace AAS
(Perkin-elmer Corp, 2015-03-01)
This paper describes the development of analytical procedures for the determination of cadmium in facial make-up based on line-source graphite furnace AAS (LS-GFAAS) and direct solid sampling (DSS) coupled to a high-resolution ...
Microwave-assisted digestion procedures for biological samples with diluted nitric acid: Identification of reaction products
(ELSEVIER SCIENCE BV, 2009)
Microwave-assisted sample preparation using diluted nitric acid solutions is an alternative procedure for digesting organic samples. The efficiency of this procedure depends on the chemical properties of the samples and ...
Effect of cattle breed and basal diet on digestibility, rumen bacterial communities, and eating and rumination activity
(2020-04-25)
The objectives of this study were to compare ruminal total tract digestibility, bacterial communities, and eating and rumination activity between Holstein and Angus steers fed grain- or forage-based diets. Six Holstein ...
Evaluation of an improved closed-vessel conductively heated digestion system for the analysis of raw meat samples by ICP techniques
(2018-08-01)
In this work, an improved conductively heated digestion system (CHDS) with closed vessels, which provides simpler, easier and safer digestion of raw chicken, beef and pork meat samples aiming at Ca, Cu, Fe, K, Mg, Mn, Na, ...
Evaluation of models for prediction of the energy value of diets for growing cattle from the chemical composition of feeds
(Revista Brasileira de Zootecnia, 2017)