Tracer monitored titrations: measurement of dissolved oxygen.
نویسندگان
چکیده
The tracer monitored titration (TMT) technique is evaluated for measurement of dissolved oxygen. The TMT developed in this work uses a simple apparatus consisting of a low-precision pump for titrant delivery and an optical detector based on a white LED and two photodiodes with interference filters. It is shown that the classic Winkler method can be made free of routine volumetric and gravimetric measurements by application of TMT theory, which allows tracking the amounts of titrant and sample using a chemical tracer. The measurement precision of the prototype setup was 0.3% RSD.
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ورودعنوان ژورنال:
- Analytical chemistry
دوره 84 1 شماره
صفحات -
تاریخ انتشار 2012