The partial least square (PLS) method for spectrophotometric simultaneous determination of phenylalanine,tryptophan and tyrosine in the mixed amino acids was studied.

• 本文将偏最小二乘法(PLS)用于分光光度法同时测定混合氨基酸体系中的苯丙氨酸、色氨酸和酪氨酸。