Formic acid extraction triplicate spectra from the six <i>H. parainfluenzae</i> study isolates with the highest (top) and lowest (bottom) MALDI Biotyper identification scores.
<p>Inscribed numbers denote the highest score from triplicate measurements. Scores ≥2.0 constitute species-level identification. Lower-scoring spectra show reduced signal intensity and signal-to-noise ratio, resulting in reduced peak detection rates. For non-<i>H. haemolyticus</i> study isolates, failed species-level identification with the Bruker mass spectrometry fingerprinting system could be attributed to suboptimal spectrum quality rather than insufficient database coverage.</p
