目的:建立衍生气相色谱法检测马来酸阿法替尼中的水合肼。方法:采用丙酮-冰醋酸衍生,利用DB-225毛细管柱(0。25 mm × 30 m × 0。25 μm)分离,氢火焰离子化(FID)检测器。结果:方法在1。258~50。34μg·mL-1具有良好的线性(r>0。999),检测限为0。001%,回收率91。7%~107。2%。结论:该方法检测成本低廉,方法简便,结果可靠,重现性好,可用于马来酸阿法替尼中水合肼衍生检测分析。
GC-FID-derivative technique determination of hydrazine hydrate in afatinib maleate
Objective:To establish a derivative gas chromatography method for quantitative determination of hydra-zine hydrate in afatinib maleate.Methods:Acetone-glacial acetic acid solution and DB-225 capillary column(0.25 mm×30 m × 0.25 μm)and FID was used to separate andquantitative decermine hydrazine hydrate.Results:Excellent linearity showed within the range of 1.258-50.34 µg·mL-1(r>0.999),detection limit was 0.001%,and the recovery rate was 91.7%-107.2%.Conclusion:The method shows low testing cost,satisfac-tory repeatability,simplicity and convenience,and is valid in derivative separation and analysis of hydrazine hydrate in afatinib maleate.