[ Formula 19 ] [ c 1 c 2 ??? c m ] = ( J 2 T ??? J 2 ) - 1 ??? J 2 T ??? [ Q 1 Q 2 ??? Q r ] , ( 18 ) Q u = [ Q 1 u Q 2 u ??? Q ku ] ( 19 ) J 2 = [ T 11 T 12 ??? T 1 m T 21 T 22 ??? T 2 m ??? ??? ??? T r1 T r2 ??? T rm ] , ( 20 ) T uj = [ T 1 uj T 2 uj ??? T kuj ] ( 21 ) It is assumed herein that the target sample contains the first to mth (where m is an integer of 2 or more) fluorescent dyes and