| Abstract: | In the determination of lead in monazite-to be used as the basis for geologic age measurements-it was necessary to eliminate interferences due to the presence of phosphates of thorium and the rare earth metals. The method involves attacking the monazite samples with hot, concentrated sulfuric acid, then taking them up with dilute nitric acid. Lead is extracted as the dithizonate and determined spectrophotometrically at 520 m??. Rapid determinations were made with good reproducibility on a series of monazite samples. |
| Genre: | Article |
| ProdID: | 70010562 |
| Citation Author: | Powell, R. A.; Kinser, C. A. |
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| Citation End Page: | 1141 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Analytical Chemistry |
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| Citation Number Of Pages: | 3 |
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| Citation Search Results Text: | Dithizone method for determination of lead in monazite; 1958; Article; Journal; Analytical Chemistry; Powell, R. A.; Kinser, C. A. |
| Citation Start Page: | 1139 |
| Citation Volume: | 30 |
| Citation Year: | 1958 |
| Type: | citation/reference |
| Text: | Dithizone method for determination of lead in monazite; 1958; Article; Journal; Analytical Chemistry; Powell, R. A.; Kinser, C. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1958 00:00 -0600 |
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