Figure 2: MALDI-TOF MS detection limit for MTB identification. | Scientific Reports

Figure 2: MALDI-TOF MS detection limit for MTB identification.

From: Rapid Sputum Multiplex Detection of the M. tuberculosis Complex (MTBC) and Resistance Mutations for Eight Antibiotics by Nucleotide MALDI-TOF MS

Figure 2

Genomic DNA extracted from M. tuberculosis H37Ra was serially diluted from 1000 to 5 copies in distilled water. The signal height was obtained using Type4 software. (A) Mass spectra of serial dilutions with various MTB copies. Positive signals are indicated by arrows. (B) Correlation between the diluted MTB copy number (theoretical copy number) and positive signal height from MALDI-TOF MS.

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