Rapid extraction and detection of trace Chlorpyrifos-methyl in orange juice by surface-enhanced Raman spectroscopy

Shende, Chetan; Inscore, Frank; Sengupta, Atanu; Stuart, James D.; Farquharson, Stuart

doi:10.1007/s11694-010-9100-6

Cited by 49 publications

(29 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, quantification could be a challenge for in situ detection on surfaces (Liu and others ). For the detection of pesticides in liquid food matrices, Shende and others () used solvent extraction and solid‐phase extraction prior to SERS to extract and detect 50 ppb chlorpyrifos‐methyl intentionally added to orange juice in 12 min.…”

Section: Applications Of Sers In the Chemical Analysis Of Foodmentioning

confidence: 99%

Surface‐Enhanced Raman Spectroscopy for the Chemical Analysis of Food

Zheng

2014

Comp Rev Food Sci Food Safe

298

156

View full text Add to dashboard Cite

Surface-enhanced Raman spectroscopy (SERS) is an emerging and promising technique for the chemical analysis of food. The use of metallic nanosubstrates improves the sensitivity and capacity of conventional Raman spectroscopy greatly. This paper comprehensively reviews the development and applications of SERS in the chemical analysis of food, mainly focusing on food additives and chemical contaminants. The progress of SERS development and their applications in chemical analysis of food, from detection and characterization of target analytes in simple solvents to complex food matrices, is summarized. The advantages and limitations of different SERS substrates and methodologies are discussed. As most of the current SERS research on chemical analysis of food is still in an early stage, there are still several hurdles for further advancing SERS techniques into real-world applications for complex food products. This review includes our perspectives on the future trends of the SERS technique in the field of food analysis.

show abstract

Section: Applications Of Sers In the Chemical Analysis Of Foodmentioning

confidence: 99%

Surface‐Enhanced Raman Spectroscopy for the Chemical Analysis of Food

Zheng

2014

Comp Rev Food Sci Food Safe

298

156

View full text Add to dashboard Cite

show abstract

“…For the applications in food matrices, many of the SERS studies still used a complex extraction procedure, which increased the analytical time (Liu and others , 2012b; Xie and others ), or achieved unsatisfactory sensitivity (Shende and others , ). A recent study reported a rapid SERS detection of 50 ppb chlorpyrifos‐methyl artificially added to orange juice in 12 min, including the time for solvent extraction and solid‐phase extraction (Shende and others ).…”

Section: Introductionmentioning

confidence: 99%

Rapid Detection of Acetamiprid in Foods using Surface‐Enhanced Raman Spectroscopy (SERS)

Wijaya

Pang

Labuza

et al. 2014

Journal of Food Science

View full text Add to dashboard Cite

Acetamiprid is a neonicotinoid pesticide that is commonly used in modern farming. Acetamiprid residue in food commodities can be a potential harm to human and has been implicated in the honey bee hive die off crisis. In this study, we developed rapid, simple, and sensitive methods to detect acetamiprid in apple juice and on apple surfaces using surface-enhanced Raman spectroscopy (SERS). No pretreatment of apple juice sample was performed. A simple surface swab method was used to recover acetamiprid from the apple surface. Samples were incubated with silver dendrites for several minutes and SERS spectra were taken directly from the silver surface. Detection of a set of 5 apple juice samples can be done within 10 min. The swab-SERS method took 15 min for a set of 5 samples. Resulting spectral data were analyzed using principal component analysis. The highest acetamiprid peak at 634 cm(-1) was used to detect and quantify the amount of acetamiprid spiked in 1:1 water-methanol solvent, apple juice, and on apple surface. The SERS method was able to successfully detect acetamiprid at 0.5 μg/mL (0.5 ppm) in solvent, 3 μg/mL (3 ppm) in apple juice, and 0.125 μg/cm(2) on apple surfaces. The SERS methods provide simple, rapid, and sensitive ways to detect acetamiprid in beverages and on the surfaces of thick skinned fruits and vegetables.

show abstract

“…Surface‐enhanced Raman scattering (SERS) is a spectroscopic technique where nanoscale metal particles are used to greatly enhance the Raman scattering of certain chemicals . The rich molecular information provided by Raman scattering and the increased sensitivity provided by surface enhancement from silver or gold nanoparticles has been successfully demonstrated for measurements of adulterated and contaminated food, drugs in saliva,explosive materials, and chemical and biological agents . Many of these measurements are being transitioned from the lab to the field and will likely employ portable Raman analyzers, virtually all of which use 785 nm laser excitation.…”

Section: Introductionmentioning

confidence: 99%

Surface‐enhanced Raman spectra of melamine and other chemicals using a 1550 nm (retina‐safe) laser

Huang

Shende

Sengupta

et al. 2011

J Raman Spectroscopy

Self Cite

View full text Add to dashboard Cite

Many trace chemical analyses are being transitioned from the lab to the field, among which is surface‐enhanced Raman spectroscopy. Although initial portable Raman analyzers primarily employ 785 nm laser excitation, recent studies suggest longer wavelengths, with an appropriate surface‐enhanced Raman‐active substrate, may provide equal sensitivity. Furthermore, 1550 nm excitation may provide added safety for the user, in that permanent retina damage does not occur. Here, we show that a reasonable enhancement factor can be obtained for melamine using 1550 nm laser excitation that is nearly equivalent to those obtained using 785 and 1064 nm laser excitation. We also demonstrate that a number of other chemicals of interest can be measured by 1550 nm surface‐enhanced Raman scattering, albeit only modest sensitivity is achieved because of instrument limitations, not enhancement factors. Copyright © 2011 John Wiley & Sons, Ltd.

show abstract

Rapid extraction and detection of trace Chlorpyrifos-methyl in orange juice by surface-enhanced Raman spectroscopy

Cited by 49 publications

References 22 publications

Surface‐Enhanced Raman Spectroscopy for the Chemical Analysis of Food

Surface‐Enhanced Raman Spectroscopy for the Chemical Analysis of Food

Rapid Detection of Acetamiprid in Foods using Surface‐Enhanced Raman Spectroscopy (SERS)

Surface‐enhanced Raman spectra of melamine and other chemicals using a 1550 nm (retina‐safe) laser

Contact Info

Product

Resources

About