RT Journal Article
SR Electronic
T1 Determination of Metallic Cations in Wines by Flow Injection Analysis
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 284
OP 288
DO 10.5344/ajev.1990.41.4.284
VO 41
IS 4
A1 José L. F. C. Lima
A1 António O. S. S. Rangel
YR 1990
UL http://www.ajevonline.org/content/41/4/284.abstract
AB Four flow-injection manifolds were developed aiming to automate the determination of metallic cations (Na, K, Ca, Mg, Fe, Mn, Zn, and Cu) in wines using atomic absorption (AAS) and flame emission (FES) spectrometry as detection processes. Good agreement was obtained between the results of FIA methods and by the reference methods, in which samples are prepared in a discrete manner and then introduced into the detection system. The FIA methods developed present good quality results (relative standard deviation between 0.57% and 1.4%) with high sampling rates (180 to 360 samples per hour) and a low reagent consumption.