PMID- 21111179
OWN - NLM
STAT- MEDLINE
DCOM- 20110411
LR  - 20121115
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 83
IP  - 2
DP  - 2010 Dec 15
TI  - A sub-nanomole level electrochemical method for determination of prochloraz and 
      its metabolites based on medical stone doped disposable electrode.
PG  - 591-5
LID - 10.1016/j.talanta.2010.10.002 [doi]
AB  - A ultrasensitive, simple and convenient electrochemical method was firstly 
      developed for the determination of prochloraz and its metabolites as 
      2,4,6-trichlorophenol (2,4,6-TCP) using nano-aperture medical stone. Compared 
      with the undoped disposable electrode (UDE), nano-aperture medical stone doped 
      disposable electrode (MSDDE) not only significantly enhances the oxidation peak 
      current of 2,4,6-TCP but also lowers the oxidation overpotential, suggesting that 
      the nano-aperture MSDDE can remarkably improve the sensitivity of 2,4,6-TCP. The 
      experimental conditions such as pH values of buffer solution, the content of 
      nano-aperture medical stone, accumulation potential and time were optimized for 
      the determination of 2,4,6-TCP. At optimal conditions, the oxidation peak current 
      is proportional to the concentration of 2,4,6-TCP over the range from 6.0 x 
      10(-9) to 8.0 x 10(-5)mol L(-1). Finally, this novel method was successfully 
      employed to detect prochloraz and its metabolites in orange rind with the 
      detection limit of 8.4 x 10(-10)mol L(-1) (0.3 ng g(-1)) and the method was 
      validated by gas chromatography.
CI  - Copyright (c) 2010 Elsevier B.V. All rights reserved.
FAU - Li, Hongbo
AU  - Li H
AD  - College of Chemistry and Engineering, Yangzhou University, 88 South University 
      Avenue, Yangzhou 225002, PR China.
FAU - Li, Jing
AU  - Li J
FAU - Hou, Chuantao
AU  - Hou C
FAU - Du, Shi
AU  - Du S
FAU - Ren, Yanyan
AU  - Ren Y
FAU - Yang, Zhanjun
AU  - Yang Z
FAU - Xu, Qin
AU  - Xu Q
FAU - Hu, Xiaoya
AU  - Hu X
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20101008
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
RN  - 0 (Chlorophenols)
RN  - 0 (Imidazoles)
RN  - 99SFL01YCL (prochloraz)
RN  - MHS8C5BAUZ (2,4,6-trichlorophenol)
SB  - IM
MH  - Calibration
MH  - Chemistry Techniques, Analytical
MH  - Chlorophenols/chemistry
MH  - Chromatography, Gas/methods
MH  - Citrus sinensis/metabolism
MH  - Electrochemistry/*methods
MH  - Electrodes
MH  - Hydrogen-Ion Concentration
MH  - Imidazoles/*analysis/chemistry
MH  - Microscopy, Electron, Transmission/methods
EDAT- 2010/11/30 06:00
MHDA- 2011/04/13 06:00
CRDT- 2010/11/30 06:00
PHST- 2010/08/09 00:00 [received]
PHST- 2010/09/28 00:00 [revised]
PHST- 2010/10/01 00:00 [accepted]
PHST- 2010/11/30 06:00 [entrez]
PHST- 2010/11/30 06:00 [pubmed]
PHST- 2011/04/13 06:00 [medline]
AID - S0039-9140(10)00775-7 [pii]
AID - 10.1016/j.talanta.2010.10.002 [doi]
PST - ppublish
SO  - Talanta. 2010 Dec 15;83(2):591-5. doi: 10.1016/j.talanta.2010.10.002. Epub 2010 
      Oct 8.