Lipid Classes

The following lipid classes can be detected and annotated using our two-stage lipid annotation procedure.

Free Fatty acids

FA

Diacylglycerol

DAG

Triacylglycerol

TAG

Phosphatidylcholine

PC

Phosphatidylinositol

PI

Phosphatidylethanolamine

PE

Phosphtidylglycerol

PG

Lysophosphatidylcholine

LysoPC

Lysophosphatidylethanolamine

LysoPE

Lysophosphatidylglycerol

LysoPG

Ether-linked phosphatidylcholine

ePC

Ether-linked Phosphatidylethanolamine

ePE

Ether-linked Lysophosphatidylcholine

eLysoPC

Sphingomyelins

SM

Ceramides

Cer

Hexosylceramide

HexCer

Inositol phosphorylceramide

IPC

Cardiolipins

CL

Sterol Esters

SE

Acyl carnitines

AC

Monogalactosyldiacylglycerols

MGDG

Digalactosyldiacylglycerols

DGDG

Sulfoquinovosyl diacylglycerols

SQDG

Cholic acid, Sphingosine

In the first stage, the spectral (mass to charge ratio of detected ions) and chromatographic information is matched to the internal database, which contains m/z and RT of over 1500 lipids from different lipids classes.

In the second stage, an additional level of annotation from the fragmentation spectrum (LC-MS/MS) is applied. In this approach, information about diagnostic fragments and precursor ions is used to reliably annotate lipid species. Further information from two annotation approaches is combined to achieve increased coverage of lipids.

Get a Quote