| Abstract: | Iodine in sea water and evaporites is determined spectrophotometrically as the starch-iodine complex without prior separation or concentration of the iodine. In slightly alkaline solution, iodide is first oxidized to iodate with permanganate. Oxidized states of manganese are destroyed with iron(II) in phosphate medium without affecting the iodate. After acidification, iodide is added to react with the iodate in the presence of starch. The iodate content is determined by the same procedure, but without the addition of permanganate. As little as 0.1??g of iodine is determinable in the presence of 500 mg of chloride and 5 mg of bromide. The total iodine concentration in seven samples of sea water was found to vary from 50 ??3 to 84 ??6 ??g l-1 with 50-100% present as the iodate. ?? 1972. |
| Genre: | Article |
| ProdID: | 70010305 |
| Citation Author: | Schnepfe, M. M. |
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| Citation End Page: | 89 |
| Citation Issue: | C |
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| Citation Language: | English |
| Citation Larger Work Title: | Analytica Chimica Acta |
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| Citation Number Of Pages: | 7 |
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| Citation Search Results Text: | Determination of total iodine and iodate in sea water and in various evaporites; 1972; Article; Journal; Analytica Chimica Acta; Schnepfe, M. M. |
| Citation Start Page: | 83 |
| Citation Volume: | 58 |
| Citation Year: | 1972 |
| Type: | citation/reference |
| Text: | Determination of total iodine and iodate in sea water and in various evaporites; 1972; Article; Journal; Analytica Chimica Acta; Schnepfe, M. M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 1972 00:00 -0600 |
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