問題詳情
12. What is the predicted intensity of the nz 228 peak relative to the MH+ peak (m/z 227) for pentobarbital from chemical ionization, CIlH'N30s? The isotopic abundances are 13C = 1.08%, 2H = 0.012%, 15N = 0.37%, and 17O = 0.038%.
(A)11.5%；
(B)10.7%；
(C)6.55%；
(D)15.2%；
(E) 13.0%.
參考答案
答案：E
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中