TY - RPRT TI - Flow injection system based on the sandwich technique for saving expensive reagents. AU - A N Araujo AU - J L Lima AU - J Alonso-Chamarro AU - J Bartrolí AU - M Poch PY - 1991 DO - 10.1016/0009-8981(91)90157-8 UR - https://pubmed.ncbi.nlm.nih.gov/1663009/ ID - 1663009 ER -