The CE instrument is controlled by a PC. The instrument settings are defined on the PC in method files. Settings, such as temperature, autosampler vial positions, injection parameters, and rinse cycles, are defined in the steps within the method. A typical method is given below. The exact settings for the parameters are determined during method development. A method can be run for a single sample. To analyze several samples, a sequence is created in which the method, number of samples, and injection repetitions are defined. A typical method listing is given below. Additional information concerning each process is then described.