| Description |
v, 57 leaves : illustrations ; 28 cm |
| Summary |
"A new approach to preconcentration of trace amounts of elements has been demonstrated whereby traces of metals tied up as chelates are coprecipitated on a column of solid organic material. Complete coprecipitation was found to occur within very narrow pH ranges, thereby allowing separation as well as concentration of the elements by careful adjustment of acidity and concentration of chelating agent. The separation is based on the difference in stability constants of the metal chelates. Preliminary studies with different physical forms of the carrier precipitate, indicate adsorptive processes could play a significant role in the mechanism of the column-coprecipitation process. The applicability of Atomic Absorption Spectrophotometry for the determination of traces of metals in coprecipitation studies has been investigated. Sensitivity limits for nine elements have been established and the effect of certain organic reagents on their standard curves determined. A new quantitative indirect method for the determination of trace amounts of chelating agent has been described"--Abstract, leaf [ii]. |
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