Figure 3.

Matched filter effects, example region 1. HPLC/ESI-QTOF-MS of a A. thaliana leaf extract. Extracted ion chromatogram (277.213 – 277.221 m/z) and matched filter results using second derivative Gaussian with different filter widths. Negative filter values were omitted.

Tautenhahn et al. BMC Bioinformatics 2008 9:504   doi:10.1186/1471-2105-9-504
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