The invention provides a process for reducing the level of hydrogen sulphide in a liquid or gas by treatment of the liquid or gas with an H2S-scavenger product derivable by the reaction of a carbonyl group-containing compound with an alcohol, thiol, amide, thioamide, urea or thiourea. The system and method retrieves source code and performs a pre-execution or preparation stage prior to execution of the source code. A display is mounted on a display arm extending from the frame connector. Associated optofluidic switching methods are disclosed. Moreover, generated TRCs can be mapped to existing TRCs to save memory. The rewiring substrate covers a portion of the first side of the semiconductor chip without covering the bioactive structure, such that the rewiring substrate overlaps the contact areas of the semiconductor chip and the contact pads and the contact areas are aligned with and electrically connect to each other.