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. 2021 Feb 28;21:69. doi: 10.1186/s12866-021-02102-8

Fig. 1.

Fig. 1

The positions of all VOC signals analysed in this study (positive and negative ion mode) in a 2D topographic plot with the x-axis indicating inverse ion mobility (1/K0 [Vs/cm2]) and the y-axis indicating the MCC retention time (RT [s])