【摘要】 本方法叙述了用示波极谱法测定水与污水中的微量砷。水样中的有机砷和无机砷被高锰酸钾氧化生成砷酸,在支持电解质中测定。校准曲线范围为0～10.0μg/10ml,方法的相对标准偏差分别为4.7,2.9和2.1回收率范围为91.67%～105.88%。更多还原

【Abstract】 A simple method for oscilloscopic polarograph determination of tracearsenic in water and waste water is descibed.Organic arsenic and inorganic arsenicwas oxygenated to arsenic acid by pot,permanganute,and then,determined in asupporting electroyte.The calibration plot is in the range,0～10.0μg/10ml and thedetection limit is 0.003ug/10ml.The precision of the method,expressed as therelative standard deviation are 4.7(0.1ug As/10ml)2.9(1.0ug As/10ml)and 2.1(10.0ugAs/10 ml).The mean percentage recovery is 101.96%.更多还原