يجب تسجيل الدخول أولا
Spectrophotometric Determination of Praseodymium by 1,4-Dihydroxyanthraquinone after its Selective Separation from Rosetta Monazite Rare Earth Concentrate by Solvent Extraction
| المصدر: | المجلة العربية للعلوم ونشر الأبحاث |
|---|---|
| الناشر: | المركز القومي للبحوث بغزة |
| المؤلف الرئيسي: | Abd-El Fattah, N. A. (Author) |
| مؤلفين آخرين: | Abdo, A. A. (Co-Author) , Ali, B. H. (Co-Author) , Weheish, H. L. A. (Co-Author) , Sadeek, A. S. (Co-Author) |
| المجلد/العدد: | مج1, ع2 |
| محكمة: | نعم |
| الدولة: |
فلسطين |
| التاريخ الميلادي: |
2015
|
| الصفحات: | 10 - 19 |
| DOI: |
10.26389/AJSRP.A27416 |
| ISSN: |
2518-5780 |
| رقم MD: | 776799 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | HumanIndex |
| مواضيع: | |
| رابط المحتوى: |
عدد مرات التحميل
8
| المستخلص: |
A rare earths concentrate of Rosetta monazite assays about 44, 23, 16.94 and 5.91 % for Ce, La, Nd and Pr respectively. Separation of cerium by air oxidation at 200oC. Selective separation of Pr by D2EHPA at pH1 followed by a sensitive spectrophotometric method which described for the determination of praseodymium (Pr) with l,4-dihydroxyanthraquinone . The calibration curve was linear from 0.1 to 12 µgml -1 praseodymium. The influences of various parameters and reaction conditions for maximum colour development were investigated. The relative standard deviation for determination of 1 µgml-1 praseodymium has found to be 1.3 after 5 repeated determinations; percent error 5.02%, molar absorptivity (ε) was 1.23x106M-1 cm-1and detection limit was 0.1µgml-1. The method for determination of praseodymium showed good accuracy and selectivity. |
|---|---|
| ISSN: |
2518-5780 |
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