Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe
A water-soluble fluorescent probe (C-GGH) was used for the highly sensitive and selective detection of cyanide (CN−) in aqueous media based on the displacement strategy. Due to the presence of the recognition unit GGH (Gly-Gly-His), the probe C-GGH can coordinate with Cu2+ and consequently display O...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2016/1462013 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832556244103069696 |
|---|---|
| author | Ming La Yuanqiang Hao Zhaoyang Wang Guo-Cheng Han Lingbo Qu |
| author_facet | Ming La Yuanqiang Hao Zhaoyang Wang Guo-Cheng Han Lingbo Qu |
| author_sort | Ming La |
| collection | DOAJ |
| description | A water-soluble fluorescent probe (C-GGH) was used for the highly sensitive and selective detection of cyanide (CN−) in aqueous media based on the displacement strategy. Due to the presence of the recognition unit GGH (Gly-Gly-His), the probe C-GGH can coordinate with Cu2+ and consequently display ON-OFF type fluorescence response. Furthermore, the in situ formed nonfluorescent C-GGH-Cu2+ complex can act as an effective OFF-ON type fluorescent probe for sensing CN− anion. Due to the strong binding affinity of CN− to Cu2+, CN− can extract Cu2+ from C-GGH-Cu2+ complex, leading to the release of C-GGH and the recovery of fluorescent emission of the system. The probe C-GGH-Cu2+ allowed detection of CN− in aqueous solution with a LOD (limit of detection) of 0.017 μmol/L which is much lower than the maximum contaminant level (1.9 μmol/L) for CN− in drinking water set by the WHO (World Health Organization). The probe also displayed excellent specificity for CN− towards other anions, including F−, Cl−, Br−, I−, SCN−, PO43-, N3-, NO3-, AcO−, SO42-, and CO32-. |
| format | Article |
| id | doaj-art-2762415bad4c46cbb4909df40fa16557 |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-2762415bad4c46cbb4909df40fa165572025-02-03T05:45:57ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732016-01-01201610.1155/2016/14620131462013Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent ProbeMing La0Yuanqiang Hao1Zhaoyang Wang2Guo-Cheng Han3Lingbo Qu4College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450000, ChinaHenan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, ChinaChangjun Middle School of Changsha, Changsha 410002, ChinaSchool of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, ChinaCollege of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450000, ChinaA water-soluble fluorescent probe (C-GGH) was used for the highly sensitive and selective detection of cyanide (CN−) in aqueous media based on the displacement strategy. Due to the presence of the recognition unit GGH (Gly-Gly-His), the probe C-GGH can coordinate with Cu2+ and consequently display ON-OFF type fluorescence response. Furthermore, the in situ formed nonfluorescent C-GGH-Cu2+ complex can act as an effective OFF-ON type fluorescent probe for sensing CN− anion. Due to the strong binding affinity of CN− to Cu2+, CN− can extract Cu2+ from C-GGH-Cu2+ complex, leading to the release of C-GGH and the recovery of fluorescent emission of the system. The probe C-GGH-Cu2+ allowed detection of CN− in aqueous solution with a LOD (limit of detection) of 0.017 μmol/L which is much lower than the maximum contaminant level (1.9 μmol/L) for CN− in drinking water set by the WHO (World Health Organization). The probe also displayed excellent specificity for CN− towards other anions, including F−, Cl−, Br−, I−, SCN−, PO43-, N3-, NO3-, AcO−, SO42-, and CO32-.http://dx.doi.org/10.1155/2016/1462013 |
| spellingShingle | Ming La Yuanqiang Hao Zhaoyang Wang Guo-Cheng Han Lingbo Qu Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe Journal of Analytical Methods in Chemistry |
| title | Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe |
| title_full | Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe |
| title_fullStr | Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe |
| title_full_unstemmed | Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe |
| title_short | Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe |
| title_sort | selective and sensitive detection of cyanide based on the displacement strategy using a water soluble fluorescent probe |
| url | http://dx.doi.org/10.1155/2016/1462013 |
| work_keys_str_mv | AT mingla selectiveandsensitivedetectionofcyanidebasedonthedisplacementstrategyusingawatersolublefluorescentprobe AT yuanqianghao selectiveandsensitivedetectionofcyanidebasedonthedisplacementstrategyusingawatersolublefluorescentprobe AT zhaoyangwang selectiveandsensitivedetectionofcyanidebasedonthedisplacementstrategyusingawatersolublefluorescentprobe AT guochenghan selectiveandsensitivedetectionofcyanidebasedonthedisplacementstrategyusingawatersolublefluorescentprobe AT lingboqu selectiveandsensitivedetectionofcyanidebasedonthedisplacementstrategyusingawatersolublefluorescentprobe |