00951nam a2200217 a 450000100080000000500110000800800410001910000200006024501070008026001500018752002020033765300230053965300210056265300230058370000240060670000170063070000230064770000190067070000260068970000180071510447672022-05-03       2000    bl uuuu     u00u1 u    #d1 aNÓBREGA, J. A.  aCryogenic grinding and infrared heating as alternatives for sample preparation.h[electronic resource]  aIn: WINTER CONFERENCE ON PLASMA SPECTROCHEMISTRY, 2000, Fort Lauderdale, Florida. Fort Lauderdale: ICP Information Newsletter, 2000. p.308.c2000  aDespite the advancement in sample preparation mainly propelled by the development of rnicrowave furnace technology, sample digestion remains as the rate-determining step in the analytical sequence.  aCryogenic grinding  aInfrared heating  aSample preparation1 aFATIBELLO FILHO, O.1 aCOSTA, L. M.1 aLOMBARDI, M. C. C.1 aGOUVEIA, S. T.1 aNOGUEIRA, A. R. de A.1 aBARNES, R. M.