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Abstract Infrared spectra were obtained for 1,2-dibromopropane-d6 in the liquid and in the unannealed and annealed solid states. Vibrational assignments were made for the three conformers of 1,2-dibromopropane and the three conformers of 1,2-dibromopropane-d6 with the aid of normal coordinate calculations. All three possible conformers of CD2BrCDBrCD3 were found to be present in the liquid and unannealed solid, but the PHSHH conformer was absent in the annealed solid. 相似文献
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不除氧条件下环糊精诱导室温磷光法测定喹啉 总被引:4,自引:0,他引:4
在不除氧条件下,10mL含喹啉/β-CD溶液中只需加入15μL1,2-二溴丙烷(DBP)作重原子微扰剂,就能产生强而稳定的室温磷光信号。最大λex/λem=273/496nm。喹啉浓度在5.0×10^-7 ̄5.0×10^-5mol/L,5.0×10^-4mol/L,两段三个数量级范围与室温磷光信号有良好的线性关系,最低检测限7.4×10^-8mol/L。本体系的特点是DBP用量少,从而减少了因过量 相似文献
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