PMID- 19815341
OWN - NLM
STAT- MEDLINE
DCOM- 20100222
LR  - 20191210
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 174
IP  - 1-3
DP  - 2010 Feb 15
TI  - Cloud point extraction with/without chelating agent on-line coupled with 
      inductively coupled plasma optical emission spectrometry for the determination of 
      trace rare earth elements in biological samples.
PG  - 534-40
LID - 10.1016/j.jhazmat.2009.09.084 [doi]
AB  - The on-line incorporation of cloud point extraction (CPE) with/without 
      8-hydroxyquinoline (8-Ox) as chelating agent into flow injection analysis 
      associated with inductively coupled plasma optical emission spectrometry 
      (ICP-OES) for determining trace rare earth elements (REEs) is presented and 
      evaluated. The significant parameters affecting on-line cloud point extraction of 
      REEs such as sample pH, flow rate, 8-Ox concentration, Triton X-114 concentration 
      were systematically studied. Under the optimized conditions, with the consumption 
      of 3.0 mL sample solution, the limits of detection (3 sigma) were ranged from 
      41.4 pg mL(-1) (Yb) to 448 pg mL(-1) (Gd) with relative standard deviations 
      (RSDs) of 1.0% (Eu)-5.9% (Sm) for on-line CPE-ICP-OES with 8-Ox as chelating 
      agent, and 69.0 pg mL(-1) (Sc) to 509.5 pg mL(-1) (Sm) with RSDs of 2.9% 
      (Yb)-7.5% (Ho) for on-line CPE-ICP-OES without 8-Ox as chelating agent, 
      respectively. The sample throughput of 17samples h(-1) was obtained for both 
      systems. The developed methods of on-line CPE-ICP-OES were validated by the 
      analysis of certified reference material (GBW07605, tea leaves) and real 
      biological samples of pig liver, Auricularia auricula and mushroom.
FAU - Li, Yingjie
AU  - Li Y
AD  - Department of Chemistry, Key Laboratory of Analytical Chemistry for Biology and 
      Medicine (Ministry of Education), Wuhan University, Wuhan 430072, China.
FAU - Hu, Bin
AU  - Hu B
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Validation Study
DEP - 20090923
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Chelating Agents)
RN  - 0 (Metals, Rare Earth)
RN  - 0 (Trace Elements)
SB  - IM
MH  - Chelating Agents/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Metals, Rare Earth/*analysis
MH  - Reference Standards
MH  - Spectrum Analysis/*methods
MH  - Temperature
MH  - Trace Elements/*analysis
EDAT- 2009/10/10 06:00
MHDA- 2010/02/23 06:00
CRDT- 2009/10/10 06:00
PHST- 2009/06/17 00:00 [received]
PHST- 2009/09/16 00:00 [revised]
PHST- 2009/09/16 00:00 [accepted]
PHST- 2009/10/10 06:00 [entrez]
PHST- 2009/10/10 06:00 [pubmed]
PHST- 2010/02/23 06:00 [medline]
AID - S0304-3894(09)01545-3 [pii]
AID - 10.1016/j.jhazmat.2009.09.084 [doi]
PST - ppublish
SO  - J Hazard Mater. 2010 Feb 15;174(1-3):534-40. doi: 10.1016/j.jhazmat.2009.09.084. 
      Epub 2009 Sep 23.