PMID- 22140675
OWN - NLM
STAT- MEDLINE
DCOM- 20120501
LR  - 20131121
IS  - 1364-5528 (Electronic)
IS  - 0003-2654 (Linking)
VI  - 137
IP  - 3
DP  - 2012 Feb 7
TI  - Ultrasensitive detection of phenolic compounds based on a spin-labeled 
      luminescent lanthanide complex.
PG  - 710-5
LID - 10.1039/c1an15647k [doi]
AB  - Herein we propose a novel method for ultrasensitive detection of phenolic 
      compounds. This method was developed based on a spin-labeled terbium complex 
      Tb(3+)/cs124-DTPA-TEMPO (1). This spin-labeled terbium complex is a weakly 
      luminescent compound and shows strong off-on luminescent response to phenolic 
      compounds in the presence of horseradish peroxidase (HRP), glutathione (GSH) and 
      hydrogen peroxide. The analyte recognition and signaling mechanism are discussed 
      and the factors affecting the off-on luminescence have been explored. Detection 
      limits of 1.1 nM for phenol, 1.1 nM for resorcine, 0.6 nM for m-cresol, 3 nM for 
      p-cresol, and 0.5 nM for 2,4-dichlorophenol were obtained, respectively. The 
      practicability of the proposed method has been tested in detection of the 
      concentration of spiked nearshore seawaters, and recoveries of 77.4-80.4% with 
      relative standard deviations (RSDs) of 1.0-2.2% were obtained.
FAU - Ji, Xiang
AU  - Ji X
AD  - The Key Laboratory for Chemical Biology of Fujian Province, and Department of 
      Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 
      Xiamen, China.
FAU - Hong, Jinqing
AU  - Hong J
FAU - Guo, Xiangqun
AU  - Guo X
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111205
PL  - England
TA  - Analyst
JT  - The Analyst
JID - 0372652
RN  - 0 (Phenols)
RN  - 0 (Spin Labels)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - GAN16C9B8O (Glutathione)
SB  - IM
MH  - Electron Spin Resonance Spectroscopy
MH  - Glutathione/chemistry
MH  - Hydrogen Peroxide/chemistry
MH  - Limit of Detection
MH  - Luminescence
MH  - Phenols/*analysis
MH  - Spin Labels
EDAT- 2011/12/06 06:00
MHDA- 2012/05/02 06:00
CRDT- 2011/12/06 06:00
PHST- 2011/12/06 06:00 [entrez]
PHST- 2011/12/06 06:00 [pubmed]
PHST- 2012/05/02 06:00 [medline]
AID - 10.1039/c1an15647k [doi]
PST - ppublish
SO  - Analyst. 2012 Feb 7;137(3):710-5. doi: 10.1039/c1an15647k. Epub 2011 Dec 5.