DETERMINATION OF ORGANIC ACIDS IN COMPOUND FEED BY ION CHROMATOGRAPHY METHOD

被引：0

作者：

Zniszczynska, Anna ^{[1
]}

Rubaj, Jolanta ^{[1
]}

Bielecka, Grazyna ^{[1
]}

Korol, Waldemar ^{[1
]}

Kwiatek, Krzysztof ^{[2
]}

机构：

[1] Natl Res Inst Anim Prod, Natl Feed Lab, PL-20079 Lublin, Poland

[2] Natl Inst Vet Res, Dept Hyg Feedingstuffs, PL-24100 Pulawy, Poland

来源：

BULLETIN OF THE VETERINARY INSTITUTE IN PULAWY | 2011年 / 55卷 / 01期

关键词：

compound feed; organic acids; quantification; ion chromatography; FOODS;

D O I：

暂无

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

The paper presents the analytical procedure of organic acids quantification in compound feed by ion chromatography method. Organic acids: acetic, propionic, formic, malic, fumaric, and citric were extracted from a feed sample with water for 30 min. The measurement was done by conductometric detection. The limit of quantification of the assayed acids in the feeds was as follows: acetic 0.50 g/kg, propionic 0.63 g/kg, formic 0.45 g/kg, malic 0.45 g/kg, fumaric 0.50 g/kg, and citric 0.45 g/kg. The coefficient of variation ranged from 0.40% to 1.68% and its mean value was 0.82%. Mean Horrat ratio amounted to 0.35, thus confirming very good precision of the method. The recovery rate of the acids added to the compound feed ranged from 97.2% to 102.5%, with the average of 99.4%.

引用

页码：107 / 110

页数：4