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. Author manuscript; available in PMC: 2022 Sep 30.
Published in final edited form as: Trends Analyt Chem. 2021 Feb 25;139:116240. doi: 10.1016/j.trac.2021.116240

Fig. 6.

Fig. 6.

Total ion electropherograms for CE-ESIMS analysis of a standard solution of the eight organic acid (a) and a 1# blueberry juice sample (b). Experimental conditions: capillary 50 μm × 70 cm; separation voltage:22 kV; buffer solution: 40.0 mmol/L ammonium acetate (pH 6.0); sheath liquid, 70:30,(v/v) isopropanol/water containing 7.5 mmol/L acetic acid with a flow rate of 6.0 μL/min; flow of drying gas: 10.0 L/min; temperature of drying gas: 350 °C; nebulizing gas pressure:12 psi; Analyte identification: succinic acid (1), citric acid (2), salicylic acid (3), malic acid (4), benzoic acid (5), sorbic acid (6), ascorbic acid (7), tartaric acid (8). Reproduced from [108] with permission from Springer Link, copyright 2014.