An Acid-Inert Fluorescent Probe for the Detection of Nitrite.
The fluorescent detection of nitrite ions has been challenging owing to the poor acid-stability of typical fluorescent probes. Herein, an acid-inert rhodamine-based fluorescent probe has been developed for the fast detection of trace amount of nitrite ions with turn-on mode. The detection limit of nitrite ions was determined to be 9.4 nM (S/N = 3) and the linear range with high linear correlation was observed between 0.025 to 2.5 μM. A test paper method was developed for rapid visual detection of nitrite ions. Quantitative analysis of two real water samples also confirmed the reliability and sensitivity of the developed fluorescent method.
College of Pharmacy, Weifang Medical University, Weifang, 261053, China.|Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
Meiyi
M
Cai
Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
Xiaoyun
X
Chai
College of Pharmacy, Weifang Medical University, Weifang, 261053, China. xdwangwfmc@163.com.
Xuedong
X
Wang
Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai, 200433, China. wangting1983927@gmail.com.
Ting
T
Wang
Fluorescence enhancement; Nitrite; Rhodamine; Silicon