用气相色谱法测定N,N,N’,N’-四丁基-3-氧戊二酰胺在HNO_3中的溶解度

Determination of Solubility of TBOPDA in the Different Concentration of HNO_3 by Gas Chromatography

研究了用气相色谱法测定0.2 mol/LN,N,N’,N’-四丁基-3-氧戊二酰胺(TBOPDA)/40%辛醇-煤油中的TBOPDA在不同浓度HNO3中的溶解度的分析方法。首先取过量的0.2 mol/L TBOPDA/40%辛醇-煤油和不同浓度HNO3振荡40 min后,用甲苯萃取水相中的TBOPDA后进行气相色谱测量。采用选择性检测器氢火焰离子化检测器进行测定,0.2 mol/L TBOPDA/40%辛醇-煤油中的TBOPDA在1、2、3 mol/L HNO3中的溶解度分别为0.702、0.723、0.735 g/L。

In this paper,a gas chromatograhic assay for TBOPDA with flame ionization detector（FID） and Porapak-Qs column was used.First,the equal volume of 0.2 mol/L TBOPDA /40% octanol-OK and HNO3 were shaked for 40 min,then TBOPDA in the liquid phase with methylbenzene was extracted,and last organic phase with gas chromatography was analyzed.Solubility of TBOPDA in the concentration of 1,2,3 mol/L HNO3 is respectively 0.702,0.723,0.735 g/L.