Abstract
The extraction and subsequent liquid chromatographic analysis of human plasma samples for cortisol is described. Extraction and chromatography are optimized, resulting in a recovery for cortisol of 96% and a detection limit of 1 microgram cortisol in 100 ml plasma. The application of two chemically modified silicas has been evaluated. The specificity of the method was tested by field desorption - mass spectrometry experiments.
Original language | English |
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Pages (from-to) | 165-172 |
Journal | Clinica Chimica Acta |
Volume | 78 |
DOIs | |
Publication status | Published - 1977 |