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研究了用于临床检测苯丙酮尿症的一种新方法 ,即采用共价交联的方法将苯丙氨酸裂解酶固定化在氨气敏电极上 ,制成酶电极来检测血液中苯丙氨酸的质量浓度。给出了酶电极响应的Nernst方程和测试装置 ,并采取预处理措施来提高电极的活性和寿命。
A new method for the clinical detection of phenylketonuria was studied, that is, the method of covalent cross-linking of phenylalanine lyase immobilized on the ammonia gas sensor electrode made of enzyme to detect benzene in the blood Mass concentration of the amino acid. The Nernst equation of the enzyme electrode response and the test device are given, and the pretreatment measures are taken to improve the electrode activity and life expectancy.