Room temperature phosphorescence of palladium(II) — coproporphyrin III complex in a precipitated nonionic surfactant micelle phase: determination of traces of palladium(II)
✍ Scribed by Shukuro Igarashi; Kazutoshi Endo
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 464 KB
- Volume
- 320
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
The palladium(H)-coproporphyrin III complex was distributed and concentrated in the surfactant phase precipitated from a homogeneous micellar solution of Triton X-100 by heating for 20 to 30 min at a temperature above its cloud point. This concentrated complex had strong phosphorescence at room temperature. Based on these findings, the room temperature phosphorimetric determination of lop9 M levels of Pd(I1) was developed. The detection limit (signal-to-noise ratio = 3) was 2 X lop9 M (2.7 ng Pd2+/15 ml), and the relative standard deviation was 2.1% for 1 x 1O-6 M (1.6 pg Pd*+/15 ml) (6 determinations).