ICCAS OpenIR
Turn-on fluorescent detection of cyanide based on the inner filter effect of silver nanoparticles
Shang, Li1; Qin, Chuanjiang2; Jin, Lihua1; Wang, Lixiang2; Dong, Shaojun1
2009
Source PublicationANALYST
ISSN0003-2654
Volume134Issue:7Pages:1477-1482
AbstractA simple, sensitive fluorescent method for detecting cyanide has been developed based on the inner filter effect (IFE) of silver nanoparticles (Ag NPs). With a high extinction coefficient and tunable plasmon absorption feature, Ag NPs are expected to be a powerful absorber to tune the emission of the fluorophore in the IFE-based fluorescent assays. In the present work, we developed a turn-on fluorescent assay for cyanide based on the strong absorption of Ag NPs to both excitation and emission light of an isolated fluorescence indicator. In the presence of cyanide, the absorber Ag NPs will dissolve gradually, which then leads to recovery of the IFE-decreased emission of the fluorophore. The concentration of Ag NPs in the detection system was found to affect the fluorescence response toward cyanide greatly. Under the optimum conditions, the present IFE-based approach can detect cyanide ranging from 5.0 x 10 (7) to 6.0 x 10 (4) M with a detection limit of 2.5 x 10 (7) M, which is much lower than the corresponding absorbance-based approach and compares favorably with other reported fluorescent methods. In addition, the present method possesses a good selectivity for cyanide over other common anions and further application in cyanide-spiked water samples suggested a recovery between 98.2 and 101.4%. Therefore, our proposed IFE-based fluorescent method is expected to be applied for cyanide determination in practical applications.
DOI10.1039/b823471j
Indexed BySCI
Language英语
WOS IDWOS:000267499800031
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66956
Collection中国科学院化学研究所
Corresponding AuthorDong, Shaojun
Affiliation1.Chinese Acad Sci, State Key Lab Electroanalyt Chem, Changchun Inst Appl Chem, Grad Sch, Changchun 130022, Peoples R China
2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Grad Sch, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Shang, Li,Qin, Chuanjiang,Jin, Lihua,et al. Turn-on fluorescent detection of cyanide based on the inner filter effect of silver nanoparticles[J]. ANALYST,2009,134(7):1477-1482.
APA Shang, Li,Qin, Chuanjiang,Jin, Lihua,Wang, Lixiang,&Dong, Shaojun.(2009).Turn-on fluorescent detection of cyanide based on the inner filter effect of silver nanoparticles.ANALYST,134(7),1477-1482.
MLA Shang, Li,et al."Turn-on fluorescent detection of cyanide based on the inner filter effect of silver nanoparticles".ANALYST 134.7(2009):1477-1482.
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