三环唑75％可湿性粉剂含量测定的不确定度评定

用气相色谱法测定三环唑含量，利用氢火焰离子化检测器（FID）进行检测，通过对待测样品中色谱峰的保留时间定性，根据样品峰面积与标准比较，用外标法进行定性。测定样品中三环唑含量为75．45％，扩展不确定度为1．82％，75％三环唑可湿性粉剂中三环唑含量为（75．45±1．82）％。

Evaluation on Uncertainty of Determining 75% Tricyclazole WP Content

Tricyclazole content was determined by the gas chromatography, using hydrogen flame detector (FID) for detection, using external standard qualitative method. The results show that determining content of tricyclazole is 75.45%, the expanded uncertainty is 1.82%, tricyclazole content in 75% wettable powder is(75.45 ± 1.82) %.