PMID- 16613632
OWN - NLM
STAT- MEDLINE
DCOM- 20060606
LR  - 20131121
IS  - 0003-7028 (Print)
IS  - 0003-7028 (Linking)
VI  - 60
IP  - 4
DP  - 2006 Apr
TI  - Quantitative analysis of methyl parathion pesticides in a polydimethylsiloxane 
      microfluidic channel using confocal surface-enhanced Raman spectroscopy.
PG  - 373-7
AB  - A fast and ultra-sensitive trace analysis of methyl parathion pesticides in a 
      polydimethylsiloxane (PDMS) microfluidic channel was investigated using confocal 
      surface-enhanced Raman spectroscopy (SERS). A three-dimensional PDMS-based 
      passive micromixer was fabricated for this purpose. This PDMS micromixer showed a 
      high mixing efficiency because a strong chaotic advection was developed by the 
      simultaneous vertical and transverse dispersion of the confluent streams. The 
      confocal SERS signal was measured after methyl parathion pesticides were 
      effectively adsorbed onto silver nanoparticles while flowing along the upper and 
      lower alligator-teeth-shaped PDMS channel. A quantitative analysis of the methyl 
      parathion pesticides was performed based on the measured peak height at 1246 
      cm-1. Our method has a detection limit of 0.1 ppm. This value satisfies the 
      requirement recommended by the Collaborative International Pesticides Analytical 
      Council (CIPAC) for the determination of methyl parathion in pesticide 
      formulations. This study demonstrates the feasibility of using confocal SERS for 
      the highly sensitive detection of methyl parathion pesticides in a PDMS 
      microfluidic channel.
FAU - Lee, Donghoon
AU  - Lee D
AD  - Department of Applied Chemistry, Hanyang University, Ansan 426-791, South Korea.
FAU - Lee, Sangyeop
AU  - Lee S
FAU - Seong, Gi Hun
AU  - Seong GH
FAU - Choo, Jaebum
AU  - Choo J
FAU - Lee, Eun Kyu
AU  - Lee EK
FAU - Gweon, Dae-Gab
AU  - Gweon DG
FAU - Lee, Sanghoon
AU  - Lee S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Appl Spectrosc
JT  - Applied spectroscopy
JID - 0372406
RN  - 0 (Dimethylpolysiloxanes)
RN  - 0 (Pesticides)
RN  - 0 (Silicones)
RN  - 0 (Silver Compounds)
RN  - 41BCL2O91D (Methyl Parathion)
RN  - 63148-62-9 (baysilon)
SB  - IM
MH  - Calibration
MH  - Dimethylpolysiloxanes/*chemistry
MH  - Methyl Parathion/*analysis
MH  - Microfluidic Analytical Techniques/*instrumentation
MH  - Microscopy, Confocal/*methods
MH  - Pesticides/*analysis
MH  - Sensitivity and Specificity
MH  - Silicones/*chemistry
MH  - Silver Compounds/chemistry
MH  - Spectrum Analysis, Raman/*methods
EDAT- 2006/04/15 09:00
MHDA- 2006/06/07 09:00
CRDT- 2006/04/15 09:00
PHST- 2006/04/15 09:00 [pubmed]
PHST- 2006/06/07 09:00 [medline]
PHST- 2006/04/15 09:00 [entrez]
AID - 10.1366/000370206776593762 [doi]
PST - ppublish
SO  - Appl Spectrosc. 2006 Apr;60(4):373-7. doi: 10.1366/000370206776593762.