A New Method for the Microdetermination of Free and Total Nonprotein-bound Tryptophan in Plasma

[摘要] A new technic for the determination of tryptophan in plasma, based on the tryptophan-dimethylaminobenzaldehyde reaction, is described. It provides a method for the determination of as little as 20 µg. of tryptophan and also permits the determination of bound tryptophan in nonprecipitable peptides, using 10% perchloric acid as the deproteinizing agent.

[学科分类] 过敏症与临床免疫学