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Citation: Ara. Nogueira et al., CATALYTIC DETERMINATION OF COBALT BY FLOW-INJECTION SPECTROPHOTOMETRY- APPLICATION IN ANIMAL FECES ANALYSIS USING HYDROCHLORIC-ACID AS EXTRACTING SOLUTION, Animal feed science and technology, 74(1), 1998, pp. 79-84

Authors: LIMA EC KRUG FJ NOBREGA JA NOGUEIRA ARA

Citation: Ec. Lima et al., DETERMINATION OF YTTERBIUM IN ANIMAL FECES BY TUNGSTEN COIL ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY, Talanta, 47(3), 1998, pp. 613-623

Authors: SILVA FV NOGUEIRA ARA SOUZA GB ZAGATTO EAG

Citation: Fv. Silva et al., A POLYVALENT FLOW-INJECTION SYSTEM FOR MULTIELEMENTAL SPECTROPHOTOMETRIC ANALYSIS OF PLANT MATERIALS, Analytica chimica acta, 370(1), 1998, pp. 39-46

Authors: NOGUEIRA ARA BRIENZA SMB ZAGATTO EAG LIMA JLFC ARAUJO AJ

Citation: Ara. Nogueira et al., FLOW-INJECTION SYSTEM WITH MULTISITE DETECTION FOR SPECTROPHOTOMETRICDETERMINATION OF CALCIUM AND MAGNESIUM IN SOIL EXTRACTS AND NATURAL-WATERS, Journal of agricultural and food chemistry, 44(1), 1996, pp. 165-169

Authors: NETO JAG NOGUEIRA ARA FILHO HB ZAGATTO EAG LIMA JLFC MONTENEGRO MCBSM

Citation: Jag. Neto et al., MULTISITE DETECTION IN FLOW-ANALYSIS .3. PERIODATE TUBULAR ELECTRODE WITH LOW INNER VOLUME AS A RELOCATABLE DETECTOR, Analytica chimica acta, 285(3), 1994, pp. 293-299