同位素的丰度
Ar36 0.337%
Ar38 0.063%
Ar40 99.6%
C12 98.93%
C13 1.07%
N14 99.63%
N15 0.368%
O16 99.76%
O17 0.038%
O18 0.205%
Cr52,53的干扰
ArO - 36+16中少,36+17少,36+18少;
ArN - 38+14中少, 38+15少,40+14多
ArC - 40+12多,40+13中少
jiangyunjun3 发表:应当主要是N,O干扰。38Ar18O,36Ar17O.