PMID- 25723132
OWN - NLM
STAT- MEDLINE
DCOM- 20151028
LR  - 20181202
IS  - 1090-2414 (Electronic)
IS  - 0147-6513 (Linking)
VI  - 115
DP  - 2015 May
TI  - Dispersive liquid-liquid microextraction method based on solidification of 
      floating organic droplet for the determination of thiamphenicol and florfenicol 
      in environmental water samples.
PG  - 229-33
LID - S0147-6513(15)00077-9 [pii]
LID - 10.1016/j.ecoenv.2015.02.025 [doi]
AB  - Dispersive liquid-liquid microextraction with solidification of a floating 
      organic droplet (DLLME-SFO) followed by high performance liquid 
      chromatography-ultraviolet (HPLC-UV) detection was applied for the determination 
      of thiamphenicol (TAP), florfenicol (FF) in water samples. 1-Undecanol was used 
      as the extraction solvent which has lower density than water, low toxicity, and 
      low melting point (19 degrees C). A mixture of 800mL acetone (disperser solvent) and 80microL 
      of 1-undecanol (extraction solvent) was injected into 20mL of aqueous solution. 
      After 5min, 0.6g of NaCl was added and the sample vial was shaken. After 5min, 
      the sample was centrifuged at 3500rpm for 3min, and then placed in an ice bath. 
      When the extraction solvent floating on the aqueous solution had solidified, it 
      was transferred into another conical vial where it was melted quickly at room 
      temperature, and was diluted with methanol to 1mL, and analyzed by HPLC-UV 
      detection. Parameters influencing the extraction efficiency were thoroughly 
      examined and optimized. The extraction recoveries (ER) and the enrichment factors 
      (EF) ranged from 67% to 72% and 223 to 241, respectively. The limits of detection 
      (LODs) (S/N=3) were 0.33 and 0.56microgL(-1) for TAP and FF, respectively. Linear 
      dynamic range (LDR) was in the range of 1.0-550microgL(-1) for TAP and 1.5-700microgL(-1) 
      for FF, the relative standard deviations (RSDs) were in the range of 2.6-3.5% and 
      the recoveries of spiked samples ranged from 94% to 106%.
CI  - Copyright (c) 2015 Elsevier Inc. All rights reserved.
FAU - Peng, Guilong
AU  - Peng G
AD  - Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of 
      Education, Chongqing University, Chongqing 400045, China. Electronic address: 
      pengguilong0325@163.com.
FAU - He, Qiang
AU  - He Q
AD  - Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of 
      Education, Chongqing University, Chongqing 400045, China. Electronic address: 
      heqiang0980@163.com.
FAU - Al-Hamadani, Sulala M Z F
AU  - Al-Hamadani SM
AD  - Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of 
      Education, Chongqing University, Chongqing 400045, China.
FAU - Zhou, Guangming
AU  - Zhou G
AD  - Key Laboratory on Luminescence and Real-Time Analysis (Southwest University), 
      Ministry of Education, School of Chemistry and Chemical Engineering, Southwest 
      University, Chongqing 400715, China.
FAU - Liu, Mengzi
AU  - Liu M
AD  - Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of 
      Education, Chongqing University, Chongqing 400045, China.
FAU - Zhu, Hui
AU  - Zhu H
AD  - Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of 
      Education, Chongqing University, Chongqing 400045, China.
FAU - Chen, Junhua
AU  - Chen J
AD  - Key Laboratory on Luminescence and Real-Time Analysis (Southwest University), 
      Ministry of Education, School of Chemistry and Chemical Engineering, Southwest 
      University, Chongqing 400715, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150224
PL  - Netherlands
TA  - Ecotoxicol Environ Saf
JT  - Ecotoxicology and environmental safety
JID - 7805381
RN  - 0 (Anti-Bacterial Agents)
RN  - 0 (Solvents)
RN  - 0 (Water Pollutants, Chemical)
RN  - 9J97307Y1H (florfenicol)
RN  - FLQ7571NPM (Thiamphenicol)
SB  - IM
MH  - Anti-Bacterial Agents/*analysis/isolation & purification
MH  - Chromatography, High Pressure Liquid
MH  - Limit of Detection
MH  - Liquid Phase Microextraction/*methods
MH  - Solvents
MH  - Thiamphenicol/*analogs & derivatives/*analysis/isolation & purification
MH  - Water Pollutants, Chemical/*analysis/isolation & purification
OTO - NOTNLM
OT  - 1-undecanol
OT  - DLLME-SFO
OT  - Florfenicol (FF)
OT  - HPLC-UV
OT  - Thiamphenicol (TAP)
EDAT- 2015/02/28 06:00
MHDA- 2015/10/29 06:00
CRDT- 2015/02/28 06:00
PHST- 2015/01/05 00:00 [received]
PHST- 2015/02/13 00:00 [revised]
PHST- 2015/02/17 00:00 [accepted]
PHST- 2015/02/28 06:00 [entrez]
PHST- 2015/02/28 06:00 [pubmed]
PHST- 2015/10/29 06:00 [medline]
AID - S0147-6513(15)00077-9 [pii]
AID - 10.1016/j.ecoenv.2015.02.025 [doi]
PST - ppublish
SO  - Ecotoxicol Environ Saf. 2015 May;115:229-33. doi: 10.1016/j.ecoenv.2015.02.025. 
      Epub 2015 Feb 24.