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.
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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
Fragment or
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
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
Lipid species
Fragment
Lipid species (Sum composition)
Lipid category
Lipid Class
MS1 adduct
MS1 charge
Sum formula