Fig. 7

Mass spectrum obtained from the μ-APPJ (0.7 slm He, U rms =160 V, d=2 mm) operated in a controlled atmosphere. Possible ion assignments are presented in Table 1
Mass spectrum obtained from the μ-APPJ (0.7 slm He, U rms =160 V, d=2 mm) operated in a controlled atmosphere. Possible ion assignments are presented in Table 1