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Methanol detection in ethanol and 2-propanol mixtures
(A and B) Sensor response to 0–100 vol% methanol in ethanol (A) or 2-propanol (B). Insets magnify 0–0.1 vol% methanol.
(C) Sensor response peak values for pure methanol (triangle) and with ethanol (squares) or 2-propanol (circles). Indicated is also the FDA recommended limit (i.e. 0.063 vol%, vertical dashed line) and best fit (black dashed line).
