Table 3.

Information of the 11 lipids markers for malignant brain gliomas.

Lipid name	Detected in DDA ESI+	Detected in DDA ESI-	Matched with MS/MS in database	Validated by chemical standard	Rank in SVM model in ESI+	Rank in SVM model in ESI-
LPC 16:0	✔	✔	✔	✔	1	2
LPC 18:0	✔	✔	✔	✔	2	1
LPC 18:2	✔	✘	✔	✘	6	-
PC 34:1; PC 16:0-18:1	✔	✔	✔	✔	4	4
PC 34:2; PC 16:0-18:2	✔	✔	✔	✔	15	6
PC 36:4; PC 16:0-20:4	✔	✔	✔	✔	14	7
PC 38:6; PC 16:0-22:6	✔	✔	✔	✔	5	11
PC 36:1; PC 18:0-18:1	✘	✔	✔	✔	-	5
PC 36:2; PC 18:0-18:2	✔	✘	✔	✔	3	-
PC 38:4; PC 18:0-20:4	✔	✔	✔	✔	7	8
TG 18:1-18:2-18:3	✔	✘	✔	✘	8	-