Abstract：
A newly synthesized naphthalimide-based fluorophore probe NIA was used to detect hydrazine. This probe, based on the Gabriel mechanism exhibited a highly sensitive revealing of hydrazine in naked eyes colorimetric as well as fluorescent recognition against other amines in an aqueous solution in DMSO - HEPES buffer. When hydrazine hydrate was added to the probe NIA, the absorption was red shifted from 403 nm to 520 nm. The titration studies by adding hydrazine to show two apparent isosbestic points found at 358 and 450 nm, respectively. Further, investigation of emission spectra upon addition of hydrazine hydride the emission peak at 493 nm gradually decreased up to 2.4 equiv. and when increasing the hydrazine hydride concentration from 2.4 equiv. to 4.4 equiv., the fluorescence intensity increased at 530 nm. which is exhibiting a raised ratiometric emission intensity at 530 nm. Further investigation of the selectivity of probe NIA revealed colorimetric and fluorimetric responses to interferences with other test amines. 1H NMR and HR-mass proved the Gabriel mechanism bath for detecting hazardous hydrazine by probe NIA. This probe NIA allowed the rapid and ultrasensitive detection of hydrazine hydride with a low detection limit of 0.26 nM. In view of the outstanding properties, probe NIA has been effectively performed to detect hydrazine using various techniques, including a test kit, silica support, and actual environmental water samples.
摘要：
新合成的基于萘酰亚胺的荧光团探针NIA用于检测肼。这个探测器,基于Gabriel机制，在DMSO-HEPES缓冲液的水溶液中，在肉眼比色法以及对其他胺的荧光识别中表现出高度敏感的显示。当将水合肼添加到探针NIA时，吸收从403nm红移到520nm。通过添加肼进行的滴定研究显示了在358和450nm处发现的两个明显的等值点，分别。Further,加入氢化物肼后的发射光谱研究，493nm处的发射峰逐渐降低至2.4当量。当氢化物肼浓度从2.4当量增加时。至4.4当量。,荧光强度在530nm处增加。在530nm处表现出升高的比率发射强度。对探针NIA的选择性的进一步研究揭示了对与其他测试胺的干扰的比色和荧光响应。1HNMR和HR-mass证明了通过探针NIA检测有害肼的Gabriel机理浴。该探针NIA允许以0.26nM的低检测极限快速和超灵敏地检测氢化肼。鉴于出色的性能，探针NIA已有效地使用各种技术来检测肼，包括一个测试套件，二氧化硅载体，和实际的环境水样。
