摘要
以苯胺为吸收液 ,光气与苯胺反应生成 1,3 二苯基脲 ,以ODS -C18柱 (15 0mm× 6mmi.d .,10 μm )为分析柱 ,甲醇 -水 (体积比为 70∶30 )为流动相 ,在 2 5 7nm波长处用紫外检测器检测 1,3 二苯基脲 ,建立了间接测定空气中光气的反相高效液相色谱法。方法的线性范围为 0 .5～ 2 5mg/L ,线性相关系数为 0 .999 6 ,测定结果的相对标准偏差为 5 .71%～ 12 .0 % ,回收率为 92 .6 %～ 94 .7% ,检出限为 6 .9× 10 -10 g。
Collected by aniline solution, phosgene reacts with aniline to form 1,3-diphenylurea. Methanol-water(70∶30) is used as mobile phase with the flow rate of 1.0 mL/min, 1,3-diphenylurea was separated on ODS-C 18 column and detected with UV detector at 257 nm. The indirect determining method of phosgene in ambient air by reversed-phase high performance liquid chromatography was set up. The linear range of working curve is 0.5～25 mg/L and the correlation coefficient is 0.9996. The relative standard deviation is 5.71%～12.0%, the recovery is 92.6%～94.7% and the detection limit is 6.9×10 -10 g.
出处
《化学分析计量》
CAS
2004年第2期23-25,共3页
Chemical Analysis And Meterage
关键词
空气
光气
间接测定
反相高效液相色谱法
苯胺
1
3—二苯基脲
毒剂
high performance liquid chromatography, ambient air, phosgene, 1,3-diphenylurea, aniline, determination
