Skip to main content
. 2021 Dec 22;2(2):100092. doi: 10.1016/j.xjidi.2021.100092

Table 5.

List of Target Ions/MRM Transitions, Assignment to Internal Standard, and Mode of Analysis

Name Internal Standard Mode Target Ion Q1>Q3
C15:0 Cer APCI 524.4>264.3
C16:0 Cer >C15:0 Cer< APCI 538.7>264.4
d17:1 Sph ESI 289.4>268.3
d18:1 Sph >d17:1 Sph< ESI 300.5>282.3
C17:0 SM (18:0) ESI 717.483>184.1
C12:0 SM (18:1) >C17:0 SM (18:0)< ESI 647.7>184.1
C14:0 SM (18:1) >C17:0 SM (18:0)< ESI 675.7>184.1
C16:0 SM (18:1) >C17:0 SM (18:0)< ESI 703.8>184.1
C18:1 SM (18:1) >C17:0 SM (18:0)< ESI 729.8>184.1
C18:0 SM (18:1) >C17:0 SM (18:0)< ESI 731.8>184.1
C20:0 SM (18:1) >C17:0 SM (18:0)< ESI 759.9>184.1
C22:0 SM (18:1) >C17:0 SM (18:0)< ESI 797.9>184.1
C24:1 SM (18:1) >C17:0 SM (18:0)< ESI 813.9>184.1
C24:0 SM (18:1) >C17:0 SM (18:0)< ESI 815.9>184.1
28:0 PC >34:0 PC< ESI 678.5>184.1
30:0 PC >34:0 PC< ESI 706.55>184.1
30:1 PC >34:0 PC< ESI 704.5>184.1
32:0 PC >34:0 PC< ESI 734.55>184.1
32:1 PC >34:0 PC< ESI 732.55>184.1
34:0 PC ESI 762.455>184.1
34:1 PC >34:0 PC< ESI 760.6>184.1
34:2 PC >34:0 PC< ESI 758.629>184.1
36:0 PC >34:0 PC< ESI 790.65>184.1
36:1 PC >34:0 PC< ESI 788.6>184.1
36:2 PC >34:0 PC< ESI 786.6>184.1
36:3 PC >34:0 PC< ESI 784.6>184.1
36:4 PC >34:0 PC< ESI 782.55>184.1
38:1 PC >34:0 PC< ESI 816.65>184.1
38:2 PC >34:0 PC< ESI 814.65>184.1
38:3 PC >34:0 PC< ESI 812.6>184.1
38:4 PC >34:0 PC< ESI 810.6>184.1
16:0 LPC >17:0 LPC< ESI 496.278>184.1
16:1 LPC >17:0 LPC< ESI 494.3>184.1
17:0 LPC ESI 510.222>184.1
18:0 LPC >17:0 LPC< ESI 524.35>184.1
18:1 LPC >17:0 LPC< ESI 522.35>184.1
18:2 LPC >17:0 LPC< ESI 520.35>184.1
20:1 LPC >17:0 LPC< ESI 550.4>184.1
20:3 LPC >17:0 LPC< ESI 546.35>184.1
20:4 LPC >17:0 LPC< ESI 544.35>184.1
16:0 LPE >17:1 LPE< ESI 454.3>313.25
17:1 LPE ESI 466.3>325.3
18:0 LPE >17:1 LPE< ESI 482.3>341.3
18:1 LPE >17:1 LPE< ESI 480.3>339.3
18:2 LPE >17:1 LPE< ESI 478.3>337.25
20:4 LPE >17:1 LPE< ESI 502.3>361.25
LysoPAF >17:0 LPC< ESI 482.3>104.20

Abbreviations: APCI, atmospheric pressure chemical ionization; Cer, ceramide; ESI, electrospray ionization; SM, sphingomyeline; Sph, sphingosine; LPC, lysophosphatidylcholine; LPE, lysophosphatidylethanolamine; PC, phosphatidylcholine.

For Cer, SM, and lyso-compounds, the number of carbon atoms is given and also the number of unsaturated bonds; for SM, the sphingoid backbone is given in brackets; and for PC, the total number of carbon atoms as well as of unsaturated bonds are given.