Note : Ion currents ( y i ) measured at the i th m/z that exhibit spectral interference are y 15 (i.e., CH 4 , C 3 H 8 , i -C 4 H 10 , and n -C 4 H 10 ), y 30 (i.e., C 2 H 6 , C 3 H 8 , and i -C 4 H 10 ), y 39 (i.e., C 3 H 6 , C 3 H 8 , i -C 4 H 10 , n -C 4 H 10 ,和C 5 H 12),Y 57(即I -C 4 H 10,N -C 4 H 10和C 5 H 12)和Y 58(即I -C 4 H 10和N -C 4 H 10)。粗体可易读。绿色代表主要质量,橙色代表相关的干扰。缩写:IC,离子电流。