Flow-injection extraction-spectrophotometric determination of perchlorate with brilliant green
1989; Elsevier BV; Volume: 217; Linguagem: Inglês
10.1016/s0003-2670(00)80398-0
ISSN1873-4324
AutoresD. Thorburn Burns, N. Chimpalee, M. Harriott,
Tópico(s)Molecular Sensors and Ion Detection
ResumoPerchlorate (0-2.5 μg ml−1) is determined spectrophotometrically at 640 nm after extraction into benzene of its ion-associate with Brilliant Green in a flow-injection manifold with a membrane separator. The injection rate is 20 h−1. The detection limit is 36 ng ml−1, based on 250-μl injections. The system is applied to the determination of perchlorate in potassium chlorate after prior selective destruction of chlorate.
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