@article{articleae6e1440, title = {Multicommutation in flow analysis . Part 4. Computer-assisted splitting for spectrophotometric determination of copper and zinc in plants}, author = {Oliveira, C C and Sartini, R P and Reis, Boaventura Freire dos and Zagatto, Elias Ayres Guidetti}, year = {1996}, doi = {10.1016/0003-2670(96)00237-1}, journal = {Analytica Chimica Acta} }