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报道了微波在线消解流动注射光度分析方法测定环境废水中总磷。研究了消解管路的长度和内径,消解剂的种类和微波功率等实验参数的影响。每小时可分析20～25个水样,方法的测定精度为RSD=1 5%(n=10),废水样品中总磷的测定结果与德国标准分析方法一致。
Reported on-line microwave digestion flow injection spectrophotometric determination of total phosphorus in environmental wastewater. The length and inner diameter of digestion line, the type of digestion agent and the experimental parameters of microwave power were studied. 20-25 water samples can be analyzed per hour. The determination accuracy of the method is RSD = 15% (n = 10). The determination result of total phosphorus in wastewater samples is consistent with the German standard analysis method.