【摘要】 采用流动注射二乙氨基二硫代甲酸钠分光光度法测定废水中的铜,优化了试验条件,讨论了干扰离子的影响。方法在0 mg/L~10.0 mg/L范围内线性良好,检出限为0.07 mg/L,水样测定的RSD≤0.8%,加标回收率为98.5%~101%,标准样品的测定结果符合要求。更多还原

【Abstract】 A method was established for determination of copper in wastewater by flow injection DDTC spectrophotometry.The experimental conditions were optimized and effect of interfering ion was discussed to produce the following results: good linearity for ranges from 0 mg/L to 10.0 mg/L,detection limit 0.07 mg/L,RSDs of the water samples ≤0.8%,the average recoveries from 98.5% to 101%,results of standard samples met requirements.更多还原