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建立了ICP-AES测Hg的新方法。研究了乙醇对溶液表面张力、雾化效率的影响。结果表明,乙醇的加入降低了溶液表面张力,从而提高了雾化效率,降低了方法检出限,对ICP-AES测Hg具有一定的增敏效应。该法已应用于PVC标准样品中汞的测定。
A new method of measuring Hg by ICP-AES was established. The effect of ethanol on the solution surface tension and atomization efficiency was studied. The results showed that the addition of ethanol reduced the surface tension of the solution, thus improving the atomization efficiency, reducing the detection limit of the method and enhancing the sensitizing effect to Hg by ICP-AES. This method has been applied to the determination of mercury in PVC standard samples.