Multicommutation in flow analysis. Part 4. Computer-assisted splitting for spectrophotometric determination of copper and zinc in plants

Formazans and their metal complexes

“…43 This procedure was employed for the determination of copper and zinc in blood sera, veterinary preparations 43 and plants. 44 Formazans were also proposed as sorbents for flow sorption ± atomic absorption determination of metals in solutions. 45 A spectrophotometric procedure for the determination of copper ions in water using 1,5-bis(2-hydroxy-5-sulfophenyl)-3cyanoformazan has been developed.…”

Multi-commutation in flow analysis: Recent developments and applications

“…The most often used strategy is to replace the reagent merging streams according to the aimed determinations, and the random access reagent selection [14] is beneficial in this regard. Other possibilities involve multi-site detection [46], exploitation of concentration gradients [51], sandwich techniques [23], addition of a discriminating reagent for speciation [63], flow reversals [64], stream splitting [65], etc.…”

Multi‐commutation in Flow Analysis: A Versatile Tool for the Development of the Automatic Analytical Procedure Focused on the Reduction of Reagent Consumption

“…Analytical procedures based on the multi-commutation process have been developed for analytes determination in matrices such as plant digest, [5,6] pharmaceutical formulations, [7,8] surface water, [9,10] lubricant oil, [11] biologic fluid, [12,13] alcoholic beverage, [14,15] and silage extract. [16,17] The procedures implemented based on the multi-commutation process have been employed as detection techniques: UV-Vis spectrophotometry, [18] potentiometry, [19,20] fluorimetry, [21,22] chemiluminescence, [23,24] and infrared spectrophotometry.…”