Analysis of arecoline in decoction pieces by microchip capillary electrophoresis with contactless conductivity detection.

A new method for the determination of arecoline in decoction pieces by microchip capillary electrophoresis with contactless conductivity detection (MCE-CCD) was proposed. The effects of various electrophoretic operating parameters on the analysis of arecoline were studied. Under the optimal conditions, arecoline was rapidly separated and detected in 1 min with good linearity over the concentration range of 20-1500 μM (=0.

[Determination of matrine in matrine injection by microfluidic chip with contactless conductivity detection].

Objective: To establish a new method for the determination of matrine in matrine injection by microfluidic chip with contactless conductivity detection.

Methods: The electrophoretic parameters, such as the variety and concentration of buffer solution and additive, separation voltage and injection time, etc. were researched.