Single beam UV/Vis Spectrophotometer comes with large memory space which can store multiple sets of data. It comes with monolithic, microprocessor controlled LCD display of 128 × 64 bit. In this vis-spectrophotometer standard curve for quantitative measurement can be established in simple method. Quantitative measurement of standard curve is established through direct input of K & B factor. It is useful in scientific research and industries for detection of impurities and other elements. It can achieve more accurate and flexible measurement requirements via PC control.