The water,dimethylamine and formaldehyde dimethylhydrazone in unsymmetrical dimethylhydrazine were determined by capillary gas chromatographic method with benzene as internal standard.The results showed that good sepa...The water,dimethylamine and formaldehyde dimethylhydrazone in unsymmetrical dimethylhydrazine were determined by capillary gas chromatographic method with benzene as internal standard.The results showed that good separation effect was obtained with the capillary column SE-54 and weakness of trace impouring imprecisely was avoided by the internal standard method.The method has broad linear scope and the correlation coefficient for water,dimethylamine and formaldehyde dimethylhydrazone is 0.9987,0.9993 and 0.9986 respectively,all approaching 1.The recoveries for water,dimethylamine and formaldehyde dimethylhydrazone in sample are 99.4%,101%and 99.7% separately.In addition,this method had high accuracy and good repetability.展开更多
基金supported by the National Distinguished Veteran TCM Expert Professor Wanlin Wang Inheritance Workshop Construction Project{National Chinese Medicine People Education Letter[2019]No.41(CZ0175)}Health Commission of Henan Province National TCM Clinical Research Base Scientific Research Special Project(2021JDZY018)Health Commission of Henan Province National TCM Clinical Research Base Reward Project(2022JDZX086)。
文摘The water,dimethylamine and formaldehyde dimethylhydrazone in unsymmetrical dimethylhydrazine were determined by capillary gas chromatographic method with benzene as internal standard.The results showed that good separation effect was obtained with the capillary column SE-54 and weakness of trace impouring imprecisely was avoided by the internal standard method.The method has broad linear scope and the correlation coefficient for water,dimethylamine and formaldehyde dimethylhydrazone is 0.9987,0.9993 and 0.9986 respectively,all approaching 1.The recoveries for water,dimethylamine and formaldehyde dimethylhydrazone in sample are 99.4%,101%and 99.7% separately.In addition,this method had high accuracy and good repetability.
基金by the Inheritance Studio of Professor Wang Wanlin,the National Famous Chinese Medicine Expert{41st Letter of Education ofTCM in 2019(CZ0175)}Special Research Project of Clinical Research Base of TCM Administration of Henan Province(2017JDZX017)Special Research Project of TCM Research of Henan Province(2018ZY2089).
