Analytical instrumentation
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The analysis of crude oil by means of different atmospheric pressure ionization (API) techniques is described. Crude oil is analyzed without any separation prior to API-Fourier transform mass spectrometry. The use of a quadrupole/hexapole device to selectively enhance a certain mass range is demonstrated. Automated generation of molecular formulae from accurate mass measurements enables rapid compound identification.
PIN 27.2 Apr/May 2026
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