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Hiperlipoproteinemias: colesterol y trigliceridos. Segunda parte. Entidades clínicas
(Acta Médica Dominicana, 1990)
Mössbauer study on indigenous ceramics in La Isabela City, Dominican Republic
(Springer Link, 1990)
The following study deals with the determination of the firing temperature of some of the ceramics found in La Isabela City, Dominican Republic, first settlement of the Spaniards in the New World. These ceramics were ...
Radioisotope X-ray fluorescence analysis of vanadium in petroleum coke samples
(Journal of Radioanalytical and Nuclear Chemistry, 1990)
Radioisotope X-ray fluorescence spectrometry, RIXRF, was used for the determination of vanadium in Venezuelan petroleum coke samples using a simple standardless method and fundamental parameter approach. The values obtained ...
Glass disk fusion method for the X-ray fluorescence analysis of rocks and silicates
(Wiley Analytical Science, 1990-08)
A study of the physical and practical aspects needed for a successful solid solution method for XRF analysis is presented in the light of the theory and practice of the glass-making industry. An inexpensive manual glass ...
Extraction of vanadium from petroleum coke samples by means of microwave wet acid digestion
(Elsevier, 1990-01)
Certified coal standards and Venezuelan petroleum coke samples were submitted to microwave acid digestion to evaluate the convenience of this procedure for the extraction of their vanadium content. The solution and the ...