The present invention provides in one aspect a composition having at least one metal complex, such that the metal complex comprises at least one metal atom, a phenanthroline-based first ligand and a second ligand comprising at least one acidic group, and at least two coordinative nitrogen atoms capable of simultaneous binding to the metal atom. A recognition controller determines whether an object detected by processing a captured image by an object detection unit is a smoke-like object or not in a smoke-like object determination unit. The methods of the invention are particularly suited for use in CVD methods. The remaining multiplex files can be combined to play back the video at a reduced sample rate. The mobile station constructs an index tag matrix according to the index tag. A target is small enough to be positioned within the active area of a semiconductor device combined with appropriate measurement methods, which result in improved measurement accuracy.