The hydrazones of hydralazine hydrochloride with various aromatic aldehydes were prepared and their spectral properties were examined. On the basis of the above examination, a colorimetric determination of hydralazine hydrochloride with p-dimethylaminocinnamaldehyde based on solvent extraction (CHCl3) was developed. The calibration curve obtained was linear up to 9.8 μg/ml of hydralazine hydrochloride. The method was successfully applied for the analysis of commercial pharmaceutical preparations (tablet and injection). The contents found were 106±2% (tablet) and 100±1% (injection) of the labeled values.
制备了
盐酸肼屈嗪与各种芳香醛的酰
肼,并考察了它们的光谱特性。在上述检测的
基础上,建立了基于溶剂萃取(
CHCl3)的对
二甲氨基肉桂醛盐酸肼屈嗪比色法。所获得的校准曲线在
盐酸肼屈嗪含量达到 9.8 μg/ml 时线性关系良好。该方法成功地应用于商业药物制剂(片剂和注射剂)的分析。所测得的含量分别为标示值的 106±2%(片剂)和 100±1%(注射剂)。