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SEAWEEDS AS SOURCE OF THE ESSENTIAL ELEMENTS (C.R. Albuquerque,
V.A. Maihara, C.B.L. Alves and P.S.C. Silva) . . . . . . . . . . . . 24
HOMOGENEITY STUDY ON BIOLOGICAL CANDIDATE REFERENCE
MATERIALS: THE ROLE OF NEUTRON ACTIVATION ANALYSIS
(D.P. Silva and E.G. Moreira) . . . . . . . . . . . . . . . . . . . . 25
TRACE ELEMENTS DETERMINED IN MINERAL WATERS USING INAA
FROM PARQUE DAS ÁGUAS DE LAMBARI AND CONTENDAS
(D.S.M. Wakasugi, A. Shigasi and S.R. Damatto) . . . . . . . . . 25
PREPARATION OF BIOLOGICAL REFERENCE MATERIALS AT LAN
– IPEN – CNEN/SP (E.G. Moreira, V.A. Maihara, L. Castro and
M.B.A. Vasconcellos) . . . . . . . . . . . . . . . . . . . . . . . . . 26
AIR POLLUTION ASSESSMENT USING TREE BARKS AS BIOMONI-
TORS (E.C. Santos and M. Saiki) . . . . . . . . . . . . . . . . . . 27
COBALT ADSORPTION IN KAOLINITE (E.S. Souza and P.S.C. Silva) 28
CHEMICAL CHARACTERIZATION OF THE CLAY DEPOSIT KNOWN
AS PERUVIAN BLACK MUD (I.C. Alves, P.F.M. Gouvêa and P.S.C.
Silva) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
BENTONITE MATURATION WITH "ÁGUAS DE LINDÓIA" WATER
(SP) (J.K. Torrecilha and P.S.C. Silva) . . . . . . . . . . . . . . . 29
CHARACTERIZATION OF NEUTRON SPECTRUM AT THE SHORT
IRRADIATION FACILITY OF THE IEA-R1 REACTOR USING THE
BARE TRIPLE MONITOR METHOD (J.P.O. Flores and R. Semmler) 30
USE OF MACROPHITES FOR REMOVAL OF METALS IN LIQUID EF-
FLUENTS, USING INSTRUMENTAL NEUTRON ACTIVATION ANAL-
YSIS (J.A.S. Oliveira and P.S.C. Silva) . . . . . . . . . . . . . . . 30
DIFFERENCES IN IRON CONCENTRATIONS IN WHOLE BLOOD OF
ANIMALS MODEL USING NAA (L.F.F.L. Silva, C.B. Zamboni, V.
Bahovschi, S. Metairon and I.M.M.A. Medeiros) . . . . . . . . . . 31
USE OF INAA TECHNIQUE IN MINERAL WATER SAMPLES FROM
THE PARQUE DAS ÁGUAS OF CAMBUQUIRA AND MARIM-
BEIRO (L.A.B. Santos, A. Shigasi and S.R. Damatto) . . . . . . . 32
CONCENTRATION AND DISTRIBUTION EVALUATIONS OF TRACE
AND RARE EARTH ELEMENT IN SAMPLE SEDIMENTS OF THE
BILLINGS AND GUARAPIRANGA RESERVOIR SYSTEMS (L.S. Silva,
F.J. Ferreira and D.I.T. Fávaro) . . . . . . . . . . . . . . . . . . . 33
MICRO-HOMOGENEITY EVALUATION OF A BOVINE KIDNEY CAN-
DIDATE REFERENCE MATERIAL (L. Castro, E.G. Moreira and
M.B.A. Vasconcellos) . . . . . . . . . . . . . . . . . . . . . . . . . 34
DETERMINATION OF k AND Q FOR 113 In(n,
) 114 In REACTION
0
0
WITH COVARIANCE ANALYSIS (L.F. Barros, M.S. Dias, M.F. Koski-
nas, I.M. Yamazaki, R. Semmler and R.V. Ribeiro) . . . . . . . . . 35
NEUTRON ACTIVATION ANALYSIS OF PHYTOTHERAPICS OF MAYTENUS
ILICIFOLIA AND SOLANUM MELONGENA PLANTS (L.M. Pereira
and M. Saiki) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
v