Electrostatic-driven solid phase microextraction coupled with surface enhanced Raman spectroscopy for rapid analysis of pentachlorophenol

2017 ◽  
Vol 9 (3) ◽  
pp. 459-464 ◽  
Author(s):  
Weiwei Bian ◽  
Sha Zhu ◽  
Mingying Qi ◽  
Lanlan Xiao ◽  
Zhen Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Charge ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Rapid Analysis ◽  
Positive Surface Charge ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Ag Substrate

Rapid analysis of pentachlorophenol by electrostatic-driven SPME–SERS on a nanoporous Ag substrate with positive surface charge.

Combining Headspace Solid-Phase Microextraction and Surface-Enhanced Raman Spectroscopy To Detect the Pesticide Fonofos in Apple Juice

2018 ◽  
Vol 81 (7) ◽  
pp. 1087-1092 ◽  
Author(s):  
HAOXIN CHEN ◽  
CHUNRONG WANG ◽  
ZHIYUN ZHANG ◽  
LILI HE
Keyword(s):  
Raman Spectroscopy ◽  
Solid Phase Microextraction ◽  
Apple Juice ◽  
Solid Phase ◽  
Steel Wire ◽  
Surface Enhanced Raman Spectroscopy ◽  
Headspace Solid Phase Microextraction ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Headspace Spme

ABSTRACT We developed an innovative approach that couples headspace solid-phase microextraction (SPME) with surface-enhanced Raman spectroscopy (SERS) to detect a volatile pesticide (i.e., fonofos) in a liquid complex matrix (i.e., apple juice). A gold nanoparticles–coated fiber was fabricated by reducing gold(III) on a chemically etched stainless steel wire to extract pesticide, using SPME. The fabricated fibers were then tested by a headspace-SPME method and a dip-SPME method, followed by SERS detection of fonofos in water and apple juice samples. Using the headspace-SPME method, we can detect as low as 5 ppb of fonofos in water and apple juice, compared with the dip-SPME method, which cannot detect lower than 10 ppb in water and 50 ppb in apple juice. This study demonstrated the potential capability of the headspace-SPME-SERS method for rapid (within 30 min) and sensitive detection of volatile and vaporizable compounds in complex matrices. The developed method could be a potential alternative approach to the gas chromatography method. Future work is needed to optimize the fiber by minimizing signal variation, and it should be tested in a variety of targeted compounds and matrices.

scholarly journals Porous silver coating fiber for rapidly screening organotin compounds by solid phase microextraction coupled with surface enhanced Raman spectroscopy

RSC Advances ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 3117-3124 ◽  
Author(s):  
Zhen Liu ◽  
Le Wang ◽  
Weiwei Bian ◽  
Min Zhang ◽  
Jinhua Zhan
Keyword(s):  
Raman Spectroscopy ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Organotin Compounds ◽  
Silver Coating ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Porous Silver

Rapidly screening organotin by solid phase microextraction coupled with surface enhanced Raman spectroscopy.

scholarly journals Au@Ag core–shell nanoparticles with a hidden internal reference promoted quantitative solid phase microextraction-surface enhanced Raman spectroscopy detection

RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23866-23874 ◽  
Author(s):  
Lei Sun ◽  
Min Zhang ◽  
Vinothkumar Natarajan ◽  
Xiaofei Yu ◽  
Xiaoli Zhang ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Structural Representation ◽  
Internal Reference ◽  
Shell Nanoparticles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Core Shell Nanoparticles

Structural representation of the SPME-SERS fiber with an internal reference and the SERS detection.

Silver nanoparticle aggregates on metal fibers for solid phase microextraction–surface enhanced Raman spectroscopy detection of polycyclic aromatic hydrocarbons

The Analyst ◽  
2015 ◽  
Vol 140 (13) ◽  
pp. 4668-4675 ◽  
Author(s):  
Cuicui Liu ◽  
Xiaoli Zhang ◽  
Limei Li ◽  
Jingcheng Cui ◽  
Yu-e Shi ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Nanoparticle Aggregates ◽  
Sers Detection ◽  
Polycyclic Aromatic

Silver–copper fibers loaded with silver nanoparticles are used for SPME–SERS detection of polycyclic aromatic hydrocarbons, which can be further confirmed by GC-MS.

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