Simultaneous injection-effective mixing analysis of palladium.
A novel concept of simultaneous injection-effective mixing analysis (SIEMA) is proposed, and a SIEMA method applied to the spectrophotometric determination of palladium using a water-soluble chromogenic reagent has been demonstrated. The flow configuration of SIEMA is a hybrid format of flow injection analysis (FIA), sequential injection analysis (SIA) and multicommutation in flow-based analysis. Sample and reagent solutions are aspirated into each holding coil through each solenoid valve by a syringe pump, and then the zones are simultaneously dispensed (injected) into a mixing coil by reversed flow toward a detector through a confluence point. This results in effective mixing and rapid detection with low reagent consumption.
Department of Applied Chemistry, Aichi Institute of Technology, Toyota 470-0392, Japan.
Norio
N
Teshima
Daisuke
D
Noguchi
Yasutaka
Y
Joichi
Narong
N
Lenghor
Noriko
N
Ohno
Tadao
T
Sakai
Shoji
S
Motomizu