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http://repository.aaup.edu/jspui/handle/123456789/730Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | ali z. abu zuhri | |
| dc.date.accessioned | 2020-02-10T11:27:45Z | - |
| dc.date.available | 2020-02-10T11:27:45Z | - |
| dc.date.issued | 1984 | |
| dc.identifier.uri | http://repository.aaup.edu/jspui/handle/123456789/730 | - |
| dc.description.abstract | A spectrophotometric study of the Th(IV) complex of a new reagent 2-(5-Bromo-2- pyridylazo)-5-diethylaminophenol (5-Br-PADAP) is presented. A reddish brown complex is formed at pH 4.86, and shows maximal absorbance at 580 nm with molar absorptivity of 1.66 × 10^5 mol?1 cm?1 liter. Beer's law is obeyed over the range 0.0 to 15 ?g of thorium. Rare earths ions like La3+, Ce3+, and Y3+ do not interfere because they form complexes with 5-Br-PADAP at higher pH's (>9.94) (1). A new method for determining trace amounts of thorium is proposed, which possesses the advantages of high sensitivity and selectivity. | |
| dc.publisher | Microchemical Journal | |
| dc.title | Selective Spectrophotometric Determination of Th(IV) with 2- 2-(5-Bromo-2-Pyridylazo)-5-diethylaminophenol | |
| dc.type | Article | |
| Appears in Collections: | Faculty & Staff Scientific Research publications | |
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