ALEX
123
lipid calculator
Please cite
Pauling, Hermansson, et al. PLoS One 2017
, if you use the calculator.
Click
here
for an overview of lipid classes available in ALEX
123
lipid calculator and examples of how to use it.
Search
MS level
Lipid species or
m/z
value:
Tolerance
m/z
(+/-):
Calibration
m/z
offset:
Polarity
Adduct
Lipid category
MS
MS2
MS3
Positive
Negative
All
+H+
+2H+
+Na+
+NH4+
+[39]K+
+[7]Li+
+[6]Li+
-H+
-2H+
-3H+
+H+ -H2O
+CH3COO-
+HCOO-
+[35]Cl-
+[37]Cl-
+CH3OCOO-
-H+CH3COOH
-H+CH3COONa
-H+HCOOH
-H+HCOONa
-H+SO3-
+F-
Fatty acyl
Glycerophospholipid
Sterol lipid
Glycerolipid
Sphingolipid
Internal standard
Isotope-labeled lipid
Prenol lipid
Archeal lipids
MS3 precursor
m/z
value:
Tolerance
m/z
(+/-):
Calibration
m/z
offset:
Results
Positive ions
MS1
m/z
MS1 Δ
m/z
MS2
m/z
MS2 Δ
m/z
MS3
m/z
Lipid species
Fragment
Lipid species (Sum composition)
Lipid category
Lipid Class
MS1 adduct
MS1 charge
Sum formula
Negative ions
MS1
m/z
MS1 Δ
m/z
MS2
m/z
MS2 Δ
m/z
MS3
m/z
Lipid species
Fragment
Lipid species (Sum composition)
Lipid category
Lipid Class
MS1 adduct
MS1 charge
Sum formula