The T DI were converted to toluene diurethane derivatives by reaction with anhydrous e thanol, and subsequent were analyzed using HPLC by reference material which synt hesized by author, on C18 column and methanol/water 55/45 as mobile phase.
The T DI were converted to toluene diurethane derivatives by reaction with anhydrous e thanol, and subsequent were analyzed using HPLC by reference material which synt hesized by author, on C18 column and methanol/water 55/45 as mobile phase.
先将甲苯二异氰酸酯用无水乙醇衍生成相应的甲苯二氨基甲酸乙酯，再采用自己合成的标准物质，使用C18柱的55/45的甲醇/水移动相，用液相色谱法分析异构比。