Research Article
Analytical Variables Affecting Analysis of F2-Isoprostanes and F4-Neuroprostanes in Human Cerebrospinal Fluid by Gas Chromatography/Mass Spectrometry
Table 1
Results of quantification of F2-IsoPs and F4-NPs in three test CSF samples that have been processed for F2-IsoPs (IsoP method) or F4-NPs (NP method) analysis.
| |||||||||||||||||||||||||||||||||||||||
There were three replicates for each CSF sample. Nine CSF samples were processed and analyzed together. Data were presented as mean ± standard deviation (coefficient of variation). Coefficient of variation was the ratio of standard deviation to mean presented as percentage and was used to represent within-run imprecision. a ( under assumption of equal variance versus values of F2-IsoPs for L-CSF processed by the NP method). b ( under assumption of unequal variance versus values of F2-IsoPs for H-CSF processed by the NP method). cThe difference between the mean values of two methods divided by the mean values from IsoP method is calculated and represented as % of difference. |