title: [Quantitative determination of methyl-sulf amino-acid by internal standard-derivative infrared spectroscopy].
abstract: 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.
authors.affiliation: Department of Chemistry, Inner Mongolia Normal University, 010022 Huhhot.
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: H
authors.initials: H
authors.lastname: Wu
authors.forename: Q
authors.initials: Q
authors.lastname: Wuyun