chenrain
第4楼2014/05/09
lz,是y9一样,你这序列,C端数过去是一样的,Y离子是电荷在C端的,所以一样才正常。
Fragments will only be detected if they carry at least one charge. If this charge is retained on the N terminal fragment, the ion is classed as either a, b or c. If the charge is retained on the C terminal, the ion type is either x, y or z.