Determination of Tungsten in Tungsten Ore by Spectrophotometry with Microwave Digestion
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- Category: Tungsten Information
- Published on Wednesday, 22 July 2015 16:13
- Written by xinyi
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Microvave digestion method was applied in the determination of tungsten in tungsten ore by thiocyanate spectrophotometry.The digestion solvent was 40 mL of NaOH solution(25 g/L).The microwave power was medium-high level.The digestion time was 30 min.The dosages of all reagents were investigated.The detection limit of this method was 0.5 μg/mL.The tungsten ore was analyzed by the proposed method and the determination results were consistent with those obtained by the traditional sample preparation methods.The relative standard deviation(RSD) was less than 2.3 %.
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