Photochemical-chemiluminometric determination of aldicarb in a fully automated multicommutation based flow-assembly
作者： M Palomeque , J.A Garcı́a Bautista , M Catalá Icardo , J.V Garcı́a Mateo , J Martı́nez Calatayud
DOI: 10.1016/J.ACA.2004.02.031
关键词: Mercury-vapor lamp 、 Analytical chemistry 、 Aldicarb 、 Chemistry 、 Fully automated 、 Chemiluminescence 、 Photodegradation 、 Detection limit 、 Potassium permanganate 、 Transient signal 、 Chromatography
摘要: Abstract A sensitive and fully automated method for determination of aldicarb in technical formulations (Temik) mineral waters is proposed. The automation the flow-assembly based on multicommutation approach, which uses a set solenoid valves acting as independent switchers. operating cycle obtaining typical analytical transient signal can be easily programmed by means home-made software running Windows environment. manifold provided with photoreactor consisting 150 cm long × 0.8 mm i.d. piece PTFE tubing coiled around 20 W low-pressure mercury lamp. performed basis iron(III) catalytic mineralization pesticide UV irradiation (150 s), chemiluminescent (CL) behavior photodegradated presence potassium permanganate quinine sulphate sensitizer. turns very week into strongly photoproduct. linear over range 2.2–100.0 μg l −1 aldicarb; limit detection 0.069 μg l ; reproducibility (as R.S.D. 20 peaks 24 μg l solution) 3.7% sample throughput 17 h .
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