内标-导数红外光谱法定量测定甲硫氨基酸的含量  

Quantitative Determination of Methyl-sulf Amino-acid by Internal Standard-derivative Infrared Spetroscopy

作　　者：王喜贵[1] 李景峰[1] 吴红英[1] 乌云其木格[1] 

机构地区：[1]内蒙古师范大学化学系,呼和浩特010022

出　　处：《光谱学与光谱分析》2000年第4期484-488,共5页Spectroscopy and Spectral Analysis

基　　金：内蒙古自治区教育厅和校优秀青年科研基金资助

摘　　要：本文利用内标 导数红外光谱法测定家禽营养限制性氨基酸———甲硫氨基酸的含量 ,选择了合适的内标物CaSO4,并采用峰高、峰面积、一阶导数、二阶导数等方法 ,所得的标准曲线方程的相关系数在0 994～ 0 998范围之间 ,结果比较满意。With pressed kBr disk technique the methyl sulf amino acid——the nutritious restrictive amino acid of poultry was determined by internal standard derivative infrared spectroscopy.The suitalbe internal standard——CaSO 4 was selected,and peak height,peak area,first derivative and second derivative methods were used.In the determination,we selected undisturbed peak at 553 cm -1 as standard.The correlation coefficient of standard curve equation were in the range of 0 994—0 998.The result was satisfied.

关 键 词：红外光谱法 甲硫氨基酸 定理分析 饲料添加剂 

分 类 号：Q517.03[生物学—生物化学] S816.7[农业科学—饲料科学]