In:
Chinese Journal of Chemistry, Wiley, Vol. 34, No. 12 ( 2016-12), p. 1329-1334
Abstract:
A new (8‐hydroxyquinolin‐2‐yl)methylene picolinohydrazide derivative ( L ) has been successfully synthesized and characterized. The probe L displays high selectivity to Co 2+ in CH 3 CN/HEPES (1:1, V / V , 10 mmol·L −1 , pH=7.4) with a fluorescence "ON‐OFF" response. The Co 2+ ion recognition event possesses some distinct features including rapid response, high selectivity and sensitivity, good anti‐interference ability and being applicable within a wide pH range. Based on job's plot and ESI‐MS studies, the 1:1 binding mode was proposed. The binding constant of L and Co 2+ is 1.63×10 8 L·mol −1 and the detection limit is 1.15 µmol·L −1 . Natural water samples experiments revealed that probe L can be potentially applied to the detection of Co 2+ in real environment.
Type of Medium:
Online Resource
ISSN:
1001-604X
,
1614-7065
DOI:
10.1002/cjoc.201600555
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
2144352-X
SSG:
6,25
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