›› 2008, Vol. 10 ›› Issue (S2): 98-100.

• 饲料中氮检测 • 上一篇    下一篇

流动注射法测定青贮饲料中的氨态氮

范志影 陈金辉 肖靖泽 赵萍   

  1. 中国农业科学院饲料研究所 北京吉天仪器有限公司
  • 出版日期:2008-11-30 发布日期:2009-07-29

Determination of Ammonia-N in Silage by Flow Injection Analysis

FAN Zhi-ying1|CHEN Jin-hui2|XIAO Jing-ze2|ZHAO Ping2   

  1. 1.Feed Research Institute|Chinese Academy of Agricultural sciences|Beijing 100081|2.Beijing Titan Instruments Co.|LTD|Beijing 100016|China
  • Online:2008-11-30 Published:2009-07-29

摘要:

采用流动注射分析法测定青贮饲料中的氨态氮。方法的检出限为1.99μg/L;线性范围为10~5 000μg/L,相关系数r≥0.999;其相对标准偏差为1.03%;实际样品的加标回收率为96%~108%;样品测定频率为30样/h。本方法操作简便、灵敏度较高、线性范围宽、精密度高,对于大量饲料样品的测定结果令人满意。

关键词: 流动注射 氨态氮 青贮饮料

Abstract:

Ammonia-N in silage was determined by flow injection analysis.The detection limit was 1.99 μg/L,correlation efficient r was more than 0.999,the RSD was 1.03% and the reclaim ratio was 96%~108%.The method has the characteristics of simplicity,sensitivity and good correlation.It is suitable to be used for determination of ammonia-N in silage with large quantity of samples.

Key words: ammonia-N, flow injection analysis, silage;

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