动物饲料 呋喃唑酮含量的测定 高性能液相色谱法

[中文适用范围]： 本标准规定了测定预混料和动物饲料中呋喃唑酮含量的高效液相色谱（HPLC）方法。 本方法适用于呋喃唑酮含量为25 mg/kg～5 000 mg/kg的动物饲料和呋喃唑酮质量分数≤20%[原写为20%(m/m)]的预混料。 注 1：对于动物饲料，呋喃唑酮含量以毫克每千克表示；对于预混合物，以质量分数表示[% (m/m)]。 注 2：呋喃唑酮是一种属于硝基呋喃类的化疗药物。 硝基呋喃对革兰氏阳性和革兰氏阴性微生物以及某些霉菌和原生动物具有抑菌或杀菌作用。 [外文原描述]： This International Standard specifies a high-performance liquid chromatographic (HPLC) method for the determination of the furazolidone content of premixtures and animal feeding stuffs. The method is applicable to animal feeding stuffs with a furazolidone content of 25 mg/kg to 5 000 mg/kg and to premixtures with a mass fraction of furazolidone of up to 20 % [formerly written as 20 % ( m / m )]. NOTE 1 For animal feeding stuffs, the furazolidone content is expressed in milligrams per kilogram; for premixtures, as a mass fraction in percent [% ( m / m )]. NOTE 2 Furazolidone is a chemotherapeuticum belonging to the group of nitrofuranes. Nitrofuranes are bacteriostatic or bactericidal against Gram-positive and Gram-negative microorganisms and against some moulds and protozoa.