Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
745041 | Sensors and Actuators B: Chemical | 2013 | 7 Pages |
Abstract
4-(1H-Phenanthro[9,10-d]imidazol-2-yl)benzaldehyde (P-1) was prepared as a new ratiometric optical probe for hydrogen sulfite. Upon the addition of HSO3−, it displayed large emission wavelength shift (Δλ = 120 nm) and the detection limit was determined to be as low as 2 μM. In addition to its high selectivity for hydrogen sulfite rather than other common anions, P-1 was successfully applied to the detection of hydrogen sulfite in HeLa cells with ratiometric fluorescent methods.
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Authors
Xiaohong Cheng, Huizhen Jia, Jun Feng, Jingui Qin, Zhen Li,