Uso de irradiação de microondas na determinação espectrofotométrica de cromo com EDTA
Cr(III) slowly forms a violet complex with EDTA at pH 2.5-5.0 under normal conditions. The complex formation can be accelerated by irradiating the reacting mixture with microwave energy. The complex Cr(III)-EDTA is completely formed within 3 minutes of microwave irradiation and followed by a simple and rapid method for spectrophotometric determination of chromium. The method may be successfully applied to determination of chromium in catalyst.
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| Main Authors: | , , , , , |
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| Format: | Digital revista |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Química
1999
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000200009 |
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