Table 1 Tentative lipid assignments for the top three significant lipids in each model

From: The surgical intelligent knife distinguishes normal, borderline and malignant gynaecological tissues using rapid evaporative ionisation mass spectrometry (REIMS)

Model

m/z

Lipid

Configuration

Ion

Cancer vs Normal

673.481

Phosphatidic acid

PA(34:1)

[M − H]−

 

699.497

Phosphatidic acid/Phosphatidyl-ethanolamine

PA(36:2 / PE(34:1)

[M − H]–/[M − NH3]−

 

744.555

Phosphatidyl-ethanolamine

PE(36:1)

[M − H]−

Cancer vs BOT

699.497

Phosphatidic acid/Phosphatidyl-ethanolamine

PA(36:2 / PE(34:1)

[M − H]−/[M − NH3]−

 

742.539

Phosphatidyl-ethanolamine

PE(36:2)

[M – H]−

 

685.517

Phosphatidic-acid-plasmalogen

PA(P-36:1)

[M − H]−

  1. Tandem MS and LipidMAPS used along with locally derived lipid data sets from previous REIMS work to tentatively assign lipid classifications and configurations. PA phosphatidic acid, PE phosphatidyl-ethanolamine
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