Today HPLC systems are controlled by computer and software, software controls mobile phase composition, wavelength, temperature, flow rate, total number of samples, run time, sequence and also the acquisition. HPLC capture detector electronically by the computer system, the analyst can store, integrate and reprocess the chromatographic data according to the requirements. Interpretation shows peak area, retention time, peak height, peak percentage, tailing factor, theoretical plate number, resolution, etc.