Spectrophotometer

A spectrophotometer comprising:

• a light source;
• a monochromator for dispersing the light from said light source into a sequence of wavelengths to provide a monochromatic light of a selected one of said wavelengths;
• a sample changer for holding a plurality of samples to be analyzed, each of which is given an identification code C.sub.1,C.sub.2, . . . C.sub.n ;
• means for setting a measuring wavelength .lambda..sub.1, .lambda..sub.2, . . . .lambda..sub.n for each of said identification codes of said samples;
• means for driving said sample changer to position a selected one of said samples in the path of said monochromatic light from said monochromator;
• means for driving said monochromator to provide a monochromatic light of that one of said wavelengths preset in said setting means which corresponds to said identification code of said selected one of said samples;
• means for setting an identification code A.sub.1, A.sub.2, . . . A.sub.n for the measured data of each of said samples;
• means for setting a coefficient to be used for processing the measured data of each of said samples together with an identification code K.sub.1, K.sub.2, . . . K.sub.n ;
• means for setting an operation expression composed of said identification codes A.sub.1, A.sub.2, . . . A.sub.n of said measured data of said samples and said identification code K.sub.1, K.sub.2, . . . K.sub.n of said coefficient;
• means for storing the data obtained by measuring each of said samples held by said sample changer with the corresponding wavelength set for said sample in correspondence with the identification code of said measured data;
• and
• means for reading out said data stored in said storing means and said coefficient set in said setting means in accordance with said identification codes of said measured data and said coefficient which constitute said operation expression set in said setting means, and performing an operation for data processing in accordance with said operation expression.