【摘要】 研究了分光光度法测定农用粉煤灰中硼时样品的微波消解方法,建立了合理的分析步骤。试验结果表明:微波完全消解粉煤灰仅需25min,相对标准偏差5.8%～7.3%,其方法的加标回收率为94%～109%。结果表明,微波消解-分光光度法是测定粉煤灰中硼的一种快速、准确且低环境污染的方法。更多还原

【Abstract】 Digestion of fly ash for agricultural use by heating with microwave was studied for the spectrophotometric method of boron determination, and the effective analysis approach was established. The results showed that: The sample could be digested completely in 25 minutes, the relative standard deviation ranged from 5.38% to 7.3% and the recovery from 94% to 109%. It proves that microwave digestion-spectrophotometric method for determining boron in fly ash is rapid, accurate and less environmental contamination method.更多还原