2,7-Dichlorofluorescein, a fluorescent sensor to detect Cd<sup>2+</sup> over Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, Cu<sup>2+</sup>, Ni<sup>2+</sup> and Zn<sup>2+</sup>
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Creator |
Goswami, Priyanka
Baruah, Sukanya Das, Diganta Kumar |
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| Date |
2010-12-03T10:12:21Z
2010-12-03T10:12:21Z 2010-12 |
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| Identifier |
0975-0975(Online); 0376-4710(Print)
http://hdl.handle.net/123456789/10729 |
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| Description |
1617-1620
The intensity of the fluorescent emission spectra of 2,7-dichlorofluorescein (510-640 nm) on excitation with 350 nm enhances on interaction with Cd<sup>2+</sup> ions. Minor enhancement is observed with Na<sup>+</sup> and Zn<sup>2+</sup> ions, while no enhancement at all in fluorescence is observed with K<sup>+</sup>, Ca<sup>2+</sup>, Cu<sup>2+</sup> and Ni<sup>2+</sup>. The enhancement in the fluorescence is explained on the basis of photoinduced electron transfer (PET) mechanism due to the binding of two Cd<sup>2+</sup> ions to 2,7-dichlorofluorescein (log b = 3.80). |
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| Language |
en_US
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| Publisher |
NISCAIR-CSIR, India
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| Relation |
Int. Cl.<sup>9</sup> G01N21/64
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Source |
IJC-A Vol.49A(12) [December 2010]
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| Subject |
Electrochemistry
Sensors Fluorescence Cadmium |
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| Title |
2,7-Dichlorofluorescein, a fluorescent sensor to detect Cd<sup>2+</sup> over Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, Cu<sup>2+</sup>, Ni<sup>2+</sup> and Zn<sup>2+</sup>
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| Type |
Article
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