Name:
Subclass:
CCS Calibrant Search:
Gradient:
m/z:
±:
CCS: Å2
±: %
RT: min
±:

This is a collection of measured CCS, RT, and theoretical m/z for 19 commonly used quaternary ammonium compounds (QACs) and their phase I hepatic metabolites. Chromatographic separation was performed with a Waters Acquity UPLC, which was equipped with a quaternary solvent pump coupled to a reversed-phase Phenomenex Kinetex C8 column (100 x 2.1 mm, 1.7 uM particle size).

Chromatographic gradients consisted of varying compositions of solvent A (0.1% formic acid, 2 mM ammonium formate in water) and solvent B (acetonitrile) at a flow rate of 0.4 mL/min as follows:

  1. 0 min, 5% B; 17 min, 85% B, 20 min, 5% B
  2. 0 min, 15% B; 15 min, 90% B; 16 min, 90% B; 9 min, 15% B; 20 min, 15% B
  3. 0 min, 30% B; 15 min, 90% B; 18 min, 90% B; 18.5 min, 30% B; 20 min, 30% B
  4. 0 min, 30% B; 15 min, 80% B; 27 min, 100% B; 28.5 min, 30% B; 30 min, 30% B

Here is a list of all classes and adducts in the collection:

  • ATMAC - Alkyltrimethyl Ammonium Compounds
  • BAC - Benzalkonium Compounds
  • EtBAC - Ethylbenzylalkonium Compounds
  • DADMAC - Dialkyldimethyl Ammonium Compounds
  • CPT - Cetylpyridinium
  • BZT - Benzethonium
Name Subclass Adduct m/z CCS CCS Calibrant RT Gradient
C8_ATMAC ATMAC [M]+ 172.2065 150.67 drugs 5.46 1
+1O,-2H_C8_ATMAC ATMAC [M]+ 186.1858 144.32 drugs 1.21 1
+1O,-2H_C8_ATMAC ATMAC [M]+ 186.1858 144.32 drugs 1.69 1
+1O,-2H_C8_ATMAC ATMAC [M]+ 186.1858 144.32 drugs 1.84 1
+1O,-2H_C8_ATMAC ATMAC [M]+ 186.1858 144.32 drugs 1.98 1
+1O_C8_ATMAC ATMAC [M]+ 188.2014 150.07 drugs 1.77 1
+1O_C8_ATMAC ATMAC [M]+ 188.2014 150.07 drugs 1.91 1
-2H_C10_ATMAC ATMAC [M]+ 198.2222 160.48 drugs 6.68 1
-2H_C10_ATMAC ATMAC [M]+ 198.2222 160.48 drugs 6.84 1
C10_ATMAC ATMAC [M]+ 200.2378 164.8 drugs 7.76 1
1 2 ... 40 41 42 43 44 45 46 ... 116 117