【摘要】 本文介绍了一种 ICP- AES与氢化物发生法联用测定活性炭产品中总砷含量的方法 ,并对样品的灰化条件、仪器工作参数、基体的干扰等进行了讨论。方法的相对标准偏差 <3% (n=9) ,检出限为1 .8ng/m L,加标回收率在 95 %以上。为准确测定活性炭系列产品中总砷含量提供了一种简便、快速的方法。更多还原

【Abstract】 An ICP AES equiped with hydride generator for determining total As in activated carbon products is described.The instrument paramenters,conditions of ashing and interference of matrix are discussed.The RSD( n =9) is within 3.0%.The detection limit is 1.8ng/mL. The recovery rates of this procedure are above 95%.更多还原