Multicommutation in flow analysis. Part 1. Binary sampling: concepts, instrumentation and spectrophotometric determination of iron in plant digests
作者： Boaventura F Reis , Maria F Giné , Elias AG Zagatto , José Luis FC Lima , Rui A Lapa
DOI: 10.1016/0003-2670(94)00090-5
关键词: Reagent 、 Chemistry 、 Sample (material) 、 Peristaltic pump 、 Sampling (statistics) 、 Rotational speed 、 Flow (mathematics) 、 Instrumentation 、 Solenoid 、 Chromatography
摘要: Abstract A novel strategy to handle sample and reagent introduction in continuous flow systems is proposed. Basic features such as the effect of cell volume, analytical pathlength peristaltic pump pulsation on precision measurement were studied. The manifold was based a set three-way solenoid valves controlled by microcomputer using software written QuickBASIC. It could also control rotation speed pump. By sampling slugs solutions synchronized with pump, aliquots volumes low 2 μl be sampled relative standard deviation
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