TY - JOUR T1 - Use of a mixing chamber for sample preparation and multiple collection in sequential injection analysis: determination of sulfate in wines JO - Journal of the Brazilian Chemical Society A1 - Silva, Helena R. A1 - Segundo, Marcela A. A1 - Rangel, António O. S. S. SN - 0103-5053 UL - 10.1590/S0103-50532003000100010 VL - 14 Y1 - 2003 PB - Brasil ER -