A method of forming a semiconductor structure includes providing a first dielectric layer with an opening above a substrate. The method comprises injecting samples in a modifier liquid flow stream upstream of a mixing column that combines two independent flow streams of a liquid modifier with a highly compressed solvating fluid. An electrode membrane can be assembled such that it incorporates an iontophoretic electrode in the same device. The cookware may include a non-stick surface applied thereto. The data recording device includes a recording device which allots the data to the respective recording media and records the allotted data in the recording media, and a controller which controls the recording means so as to record correction data representing corrected signal levels of the data in the recording media together with the allotted data.