关键词: <, p>, 氨浓度, 校准, 标准样品<, /p>

Abstract: Abstract: Detection of ammonia concentration is an important indicator of the dynamic detection of laboratory animal facility． The accuracy of detection is related to curving of standard ammonia sample，which is dependent on calibration the concentration of standard sample． So the curve of standard ammonia commercially available was compared with that of ammonia preparation solution using the reagent colorimetric method． The result shows the deviation of curves is － 1. 79%． Detection of ammonia concentration is affected by many factors，to ensure the accuracy and consistency of the detection results，and laboratory verification and calibration should be performed．

Key words: <p>ammonia concentration, calibration, standard samples</p>