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Flow-injection spectrophotometric determination of yttrium with Arsenazo III

✍ Scribed by Kate Grudpan; Wiboon Praditweangkum; Ponlayuth Sooksamiti; Robert Edwards

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 150 KB
Volume: 11
Category: Article
ISSN: 0895-7533
DOI: 10.1002/(sici)1098-2728(1999)11:5<279::aid-lra6>3.0.co;2-y

No coin nor oath required. For personal study only.

✦ Synopsis

We proposed a simple flow-injection spectrophotometric procedure for the determination of yttrium using Arsenazo III and optimized various conditions (pH for color formation and sample, buffer systems, Arsenazo III concentration, injection volume, flow-rate, and mixing coils). The calibration was linear at least up to 1 mgY/L, with a detection limit (3r) of 0.02 mgY/L, RSD of 0.8% (n ‫ס‬ 11 at 0.40 mgY/L). A throughput of 60 injections h ‫1מ‬ can be achieved. The procedure was applied to ore leachates of reference materials and samples.

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