Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Dose response curve for detection of 4AP (originally dissolved in 25% methanol and 75% phosphate buffer pH 5) as recorded in phosphate buffer pH 7.8 at bias potential of +200 mV for geometries a) S0, b) S1, c) S2, d) I1, e) I2. The resulting photocurrent I is plotted versus the concentration c of 4AP.
