[Quantitative determination of methyl-sulf amino-acid by internal standard-derivative infrared spectroscopy].
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 suitable internal standard--CaSO4 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.
Wang
X
X
Department of Chemistry, Inner Mongolia Normal University, 010022 Huhhot.
Li
J
J
Wu
H
H
Wuyun
Q
Q