【摘要】 建立了环境水中铀、钚的ICP-MS测量方法。分别采集河水、水库水、自来水三种水样各100 L以分析239Pu含量。分析流程为共沉淀—阴离子交换分离纯化—ICP-MS测量,仪器检出限为0.06 ng.L-1。通过标准拟合曲线,用内标法定量,结果表明,河水和自来水中的钚含量低于检出限,水库水中钚的含量为10~14 g/L。将三种水样直接过滤后用ICP-MS测量铀含量,测量结果为0.5~1μg/L。更多还原

【Abstract】 The method of detecting U and ²³⁹Pu of the water in the environment was founded.100 L water of river,reservoir and tap water were respectively sampled.The concentration of ²³⁹Pu was analyzed by ICP-MS after the treatment by coprecipitation-anion exchange,the detection limit was 0.06 ng/L.Standard fitting curve and internal standard method was used to quantity,the result showed that the concentration of ²³⁹Pu of the water of river,tap water was （below） the detection limit,the concentration of the water of reservoir was 10¹4 g/L;All of the water were directly filtrated then detected by ICP-MS,the concentration of U of all the water was 0.5～1 μg/L.更多还原