Statistical Analysis of a Database of LC Response Factors Reported by Jordi et al. (12)a
| Item | Value per Detection Method | |||
|---|---|---|---|---|
| MS, + Ion | MS, − Ion | UV, 230 nm | CAD | |
| No.b | 156 | 74 | 113 | 122 |
| Mean | 1.0c | 1.0c | 1.0c | 1.0c |
| Standard Deviation | 1.1 | 1.2 | 0.60 | 0.65 |
| % RSD | 108% | 119% | 60% | 65% |
↵a Abbreviations: LC, liquid chromatography; MS, + Ion, mass spectrometry, positive ion; MS, − Ion, mass spectrometry, negative ion; UV, ultraviolet; CAD, charged aerosol; RSD, relative standard deviation.
↵b The total number of analytes investigated in this article was 217. Thus mutliple analytes produced no response in one or more of the detection methods.
↵c The response factors for the individual analytes were divided by the mean response factor for the entire database, thus producing a mean of 1.0.