Correction to: Anal Bioanal Chem

https://doi.org/10.1007/s00216-018-0866-4

We would like to call the reader’s attention to the fact that unfortunately in Fig. 2 of the original article the figure headings of both graphs are the same. However, the heading of the upper graph should be ‘IS-compensated recovery Low QC’ and the one of the lower graph ‘IS-compensated recovery High QC’. Please find below the corrected figure.

Fig. 2
figure 1

IS-compensated recovery (%) at Low and High QC level (n=6) for VPA, PB, PHT, CBZ and CBZ-E measured in VAMS samples, prepared by pipetting 10 μl blood at 4 different Hct levels (target values at 0.21, 0.42, 0.52 and 0.62). Shown are the mean and standard deviation. Asterisk denotes statistical difference (p<0.05, one-way ANOVA test) from the 0.42 Hct reference sample

Full size image

The original article has been corrected.