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. 2020 Jul 30;92(18):12605–12612. doi: 10.1021/acs.analchem.0c02632

Figure 4.

Figure 4

Data for the infusion of droplets containing phenylalanine ammonium lyase (PAL) biotransformation supernatant in aqueous ammonium acetate solution (100 mM) obtained using TWIMS Q-TOF instrumentation. (A) Total and extracted ion chromatograms obtained from infused supernatant droplets. One hundred scans equivalent to ∼2.6 s are shown (MS total cycle time = 0.026 s/scan). (B) Mass spectrum obtained from 1 supernatant droplet indicating detection of the biotransformation starting material (m/z 209) and product (m/z 226).