Abstract：
:A novel fluorescent nanoprobe was for the first time developed for the efficient detection of ferrocyanide ions ([Fe(CN)6]4-) based on nitrogen (N), sulfur (S) and chlorine (Cl) co-doped carbon nanoparticles (N,S,Cl-CNPs). The N,S,Cl-CNPs were fabricated through a simple and ultrafast acid-base neutralization method. The sensing mechanism was based on the quenching effect of [Fe(CN)6]4- on the fluorescence emission of N,S,Cl-CNPs via dynamic interaction. The N,S,Cl-CNPs were found to show high selectivity and sensitivity towards [Fe(CN)6]4- detection with two good linear relationships were achieved in the concentration ranges of 0.01-1.0 μg/mL and 1.0-50.0 μg/mL, respectively, and the detection limits are as low as 3.3 and 21.8 ng/mL, respectively. The proposed fluorescence method was successfully applied for [Fe(CN)6]4- analyses in food samples with high accuracy. The results of this study indicate the great application prospects of N,S,Cl-CNPs for [Fe(CN)6]4- detection in complex food matrix.
journal_name
Food Chemjournal_title
Food chemistryauthors
Hu Q,Pan Y,Gong X,Rao SQ,Xiao L,Liu L,Yang ZQdoi
10.1016/j.foodchem.2019.125590subject
Has Abstractpub_date
2020-03-05 00:00:00pages
125590eissn
0308-8146issn
1873-7072pii
S0308-8146(19)31714-5journal_volume
308pub_type
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