Answers are grounded in this paper and cite their sources.
The performance of electrospray ionization and atmospheric pressure chemical ionisation (APCI) for the analysis of carotenoids was investigated. On our instrument, APCI produced spectra which were readily interpreted, and the positive-ion mode proved applicable to all of the compounds. The separation of nine compounds in under 14 minutes by gradient elution high-performance liquid chromatography (HPLC) has been demonstrated. The performance characteristics of positive-ion HPLC/APCI-mass spectrometry have been investigated and documented for the determination of nine carotenoids. With the exception of β-carotene, the precision of the method expressed as coefficient of variation ranged from 6 to 20%. Limits of detection ranged from 0.1 to 1.4 ng/μL dependent upon the analyte. The method was used to confirm the levels of carotenoids in UK Total Diet Survey samples.
No takes yet. Share an insight, caveat, or question.
Barnes et al. (1996) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: