高效液相色谱法测定水中对(邻)硝基苯胺

Determination of p-(o-)nitroaniline in water by HPLC

建立了用高效液相色谱法测定水中对(邻)硝基苯胺的方法。水中对(邻)硝基苯胺用乙醚萃取,在40℃水浴将乙醚挥发至干,用1.0ml甲醇提取后测定。对(邻)硝基苯胺浓度在0～1.0mg/L范围内线性良好,相关系数大于0.9994,日内相对标准偏差为6.5%和5.4%,平均回收率为104.3%和107.4%。

The determination method of p(o)nitroaniline in water by HPLC is described p(o)Nitroaniline in water was extracted with ether The solution containing p(o)nitroaniline was evaprated to complete dryness in 40℃ waterbath, then reconstituted in 10ml methnol for determination The linear rangs were 0～10ml/L(r≥09994), the relative standard deviations(RSD) were 65%, 54%, the averange recovries were 1043%, 1074%.