作者:Fumihiro Ito、Shin Ando、Masato Iuchi、Tomoko Nakamura、Satoko Yorita、Kentaro Yamaguchi
DOI:10.1039/c003784b
日期:——
An effective La-complex-based probe ionization method is reported. Novel stable isotopically labeled probes containing the 15N-labeled 2,6-bis(oxazolin-2-yl)pyridine (pybox) ligand, succinimide-tetramethylpybox (NHS-TMpybox), maleimide-tetramethylpybox (Mal-TMpybox), and 4-(tetramethylpybox)-butyl bromoacetate (BrAc-TMpybox), have been synthesized and their value in analyzing large complex molecules has been studied. The value of the 15N-labeled pybox-La complex in ionizing various compounds, including bioactive peptides by cold-spray ionization mass spectrometry is emphasized.
报告了一种有效的基于 La-络合物的探针电离方法。新型稳定的同位素标记探针含有 15N 标记的 2,6-双(恶唑啉-2-基)吡啶(吡咯)配体、琥珀酰亚胺-四甲基吡咯(NHS-TMpybox)、马来酰亚胺-四甲基吡咯(Mal-TMpybox)和 4-(四甲基吡咯)-丁基溴、琥珀酰亚胺-四甲基吡啶(NHS-TMpybox)、马来酰亚胺-四甲基吡啶(Mal-TMpybox)和 4-(四甲基吡啶)-溴乙酸丁酯(BrAc-TMpybox)配体的合成,并研究了它们在分析大型复杂分子方面的价值。强调了 15N 标记的 pybox-La 复合物在通过冷喷雾电离质谱法电离各种化合物(包括生物活性肽)方面的价值。