Gallium isotopes at m/z and 70

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Gallium isotopes at m/z 68. 9256 and 70 Gallium isotopes at m/z 68.9256 and 70.9247 are present in biofilms exposed to 5 μg/ml gallium nitrate in positive-ion mode (A). Gallium isotopes at m/z 68.9256 and 70.9247 are present in biofilms exposed to 5 μg/ml gallium nitrate in positive-ion mode (A). F− is present in biofilms exposed to ciprofloxacin (C17H18FN3O3) at 20 μg/ml in negative-ion mode (B). Spectra from samples exposed to the antimicrobials are red; spectra from control samples (biofilms not exposed to antimicrobials) are black. Sarah K. Davies et al. mSphere 2017; doi:10.1128/mSphere.00211-17