of HPTC with Al 3+ and the detection limit of HPTC toward Al 3+ were 1.67 × 10 5 M –1 and 8.875 × 10 –8 M, respectively. In addition, the probe HPTC can detect Al 3+ repeatedly in DMSO/Tris-HCl (pH 7.4) 1 : 100 v/v and the detection effect is not changed. The probe HPTC showed an excellent detection ability in a wide pH range from 3 to 10 and also in living cells. Furthermore, the Al 3+ sensing mechanism
Abstrast——设计并合成了一种新型2-苯基-
1,2,3-三唑衍生荧光探针H
PTC((2-hydroxybenzylidene)-2-phenyl-2 H -1,2,3-triazole-4-carbohydrazide)用于
DMSO/
Tris-HCl (pH 7.4) 1 : 100 v/v 中 Al 3+ 的可回收检测,具有高灵敏度和选择性。添加 10.0 当量后,可在 457 nm 处实现 97 倍的荧光增强。Al 3+ 激发波长为 375 nm。H
PTC 与Al 3+ 的结合常数和H
PTC 对Al 3+ 的检测限分别为1.67 × 10 5 M –1 和8.875 × 10 –8 M。此外,探针H
PTC可以在
DMSO/
Tris-HCl (pH 7.4) 1 : 100 v/v 中重复检测Al 3+ 且检测效果不变。H
PTC 探针在 3 到 10 的宽 pH 范围内以及在活细胞中均显示出出色的检测能力。此外,Al