原文由 albert800922 发表:,do you know where we can find the materials or regulations about the recovery for AAS analysis? usually the recoveries were very good when we read the journals .thank you and I am sorry that I can not find the chinese ,so I write this in poor English ,hoping you can understand me .
1.首先确定样品中被测组分的含量
2.加标量通常为样品中被测组分含量的1-2倍
3.回收率为:(B-A)/C *100%
4.加标回收率通常在70-120%之间。
B为加标样后需测组分含量 A为未加标样时样品需测组分含量 C为标准加入量
原文由 shixiangqun 发表:
楼上所述,那么稀释液要不要重新测定一次呢?加标样品如何配制呢?是样品与标液等体积混合吗?