纳氏试剂微量法测定食品蛋白质  

Mehod of Nessler′s Reagent Indicating Color Measuring Microcosmic Protein in Food

作　　者：马森[1] 

机构地区：[1]南平师范高等专科学校化学与环境工程系,福建武夷山354300

出　　处：《南平师专学报》2006年第2期25-26,7,共3页Journal of Nanping Teachers College

摘　　要：改进纳氏试剂显色法后用于食品蛋白质微量测定。方法的灵敏度可达20μg氮,精密度的C.V达到3.6%,回收率达到96%～104%,节约试剂,简化操作,加快了测定速度。Improved mehod of Nessler＇s reagent indicating color is used to measure microcosmic protein in food. The results show as follows： sensitivity can be reached to 20 μg N, C. V of accuracy of method can be reached to 3.6%, recover rate be raised from 96 %～104 %. The mehod saves on reagent and simplifies procedure of operation. It also picks up determining speed.

关 键 词：食品蛋白质 纳氏试剂显色法 微量定氮 

分 类 号：R151.3[医药卫生—营养与食品卫生学]