1.Desorption ratio attained 97.35% and the purity of procyanidins was 95.25% when the concentration of ethal was 40% as elution solvent.
以40%醇溶液洗脱,解吸率达97.35%,原花青素纯度达95.
2.Methods:Active carbon tube adsorption were used for sampling of methacrylonitrile, then thermal desorption analysis was performed by GC(FID).
方法:活性碳管吸附空气中甲腈,热解吸后气相色谱(FID)测定。
3.The triphenylamine azo compounds were successfully characterized by matrix-assisted laser desorption-ionization time of flight mass spectrometry(MALDI-TOF MS).
利用质辅助激光解吸电离飞行时间质谱法三苯胺偶氮化合。
4.Desorption chemical ionization mass spectrometry of twelve metallohematoporphyrin complexes has been investigated under DEP condition using mixture of tetramethylsilane and methane as regent gas.