The Spectrophotometric Determination Of Cobalt With 2 Nitroso 1 Naphthol PDF Download
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| Total Pages | : 18 |
| Release | : 1968 |
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Download The Spectrophotometric Determination of Cobalt with 2-nitroso-1-naphthol Book in PDF, ePub and Kindle
A spectrophotometric method is described for the determination of down to 2 ppm of cobalt in silicate materials, steels, alloys, and uranium compounds. The cobalt complex with 2-nitroso-1-naphthol is formed, and extracted into toluene, and the colour of the organic phase is measured. The effect of many elements has been studied, and, where interferences existed, the method has been adapted to overcome them. Coefficients of variation of 1.54 and 1.61 per cent were obtained for the 25 micrograms of cobalt level.
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| Total Pages | : 5 |
| Release | : 1966 |
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Download The Spectrophotometric Determination of Cobalt with 2-nitroso-1-naphthol. Laboratory Method No 27-5 Book in PDF, ePub and Kindle
Samples are taken into solution by a suitable procedure and are neutralized with sodium hydroxide. The solution is buffered, the iron oxidized, and the cobalt 2-nitroso-1-naphthol complex is developed and extracted into toluene. The organic phase is washed to remove impurities and the percentage transmittance of the solution is measured on a spectrophotometer.
| Author | : Gary Dean Carlson |
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| Total Pages | : 142 |
| Release | : 1972 |
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Download The Spectrophotometric Determination of Cobalt in Natural Waters Using Sodium 2-nitroso-1-naphthol-5-sulfonate Book in PDF, ePub and Kindle
| Author | : Louis Silverman |
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| Total Pages | : 32 |
| Release | : 1959 |
| Genre | : Cobalt |
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Download Spectrophotometric Determination of Cobalt in Sodium Metal Book in PDF, ePub and Kindle
| Author | : T. K. Marshall |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1964 |
| Genre | : Cobalt |
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Download The Spectrophotometric Determination of Microgram Quantities of Cobalt in Tantalum and Plutonium Book in PDF, ePub and Kindle
| Author | : Zygmunt Marczenko |
| Publisher | : |
| Total Pages | : 696 |
| Release | : 1986 |
| Genre | : Science |
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Download Separation and Spectrophotometric Determination of Elements Book in PDF, ePub and Kindle
| Author | : Zygmunt Marczenko |
| Publisher | : Ellis Horwood |
| Total Pages | : 664 |
| Release | : 1976 |
| Genre | : Science |
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Download Spectrophotometric Determination of Elements Book in PDF, ePub and Kindle
| Author | : Warren F. Davis |
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| Total Pages | : 36 |
| Release | : 1969 |
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Download A Comparison of Two Spectrophotometric Methods for the Determination of Palladium in Titanium-base Alloys Book in PDF, ePub and Kindle
This report compares extraction procedures using 1-nitroso-2-naphthol and dimethylglyoxime for the spectrophotometric determination of palladium In titanium-base alloys. Dimethyglyoxime has greater selectivity hut lower sensitivity, similar precision (about 25 ppm at the 0. 2 percent level), is faster and covers a wider range of palladium contents than does l-nitroso-2-naphtho The dimethylglyoxime procedure has no interferences by any of the common or potential alloying elements, for example, cobalt, niobium, and tantalum; thus it is well suited to the determination of 0.1 to 1. 0 percent palladium in titanium-base alloys. Selectivity is improved by the presence of nitrate.
| Author | : Henriette Wepener |
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| Total Pages | : 13 |
| Release | : 1968 |
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Download The Determination of Cobalt in Geological Samples by Atomic-absorption Spectrophotometry Book in PDF, ePub and Kindle
| Author | : |
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| Total Pages | : 1142 |
| Release | : 1973 |
| Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, ePub and Kindle
