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Detection of thiabendazole applied to organic fruit by near infrared surface-enhanced Raman spectroscopy

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Raman-25-4-F1-sThiabendazole (TBZ) is a chemical fungicide and parasiticide used to prevent mould, blight and other diseases resulting from long transportation and storage, largely used as an ingredient in waxes applied to the skins of citrus fruits. The authors describe their work using near infrared-surface-enhanced Raman spectroscopy and conventional Ag nanoparticles, which showed that TBZ was found both on organic fruit and at levels higher than regulations allow.

Read more: Detection of thiabendazole applied to organic fruit by near infrared surface-enhanced Raman spectroscopy

   

Ultrafast screen for designer drugs in urine using high-throughput mass spectrometry

MS2-25-4-sIn this article we learn of a new definition for “bath salts”, and how modern mass spectrometry instrumentation can provide rapid and quantitation of these “designer” drugs.

Read more: Ultrafast screen for designer drugs in urine using high-throughput mass spectrometry

   

Tip-enhanced Raman mapping (TERM) of single-walled carbon nanotubes and graphene

Raman_25_3-F2-sSingle-walled carbon nanotubes and graphene are the subjects of great interest at present. The Tip-enhanced Raman mapping (TERM) technique is most useful for their study and can even find defects in a single sheet of graphene or a single nanotube with a spatial resolution of ~35 nm.

Read more: Tip-enhanced Raman mapping (TERM) of single-walled carbon nanotubes and graphene

   

Determination of trace element concentrations in ambient aerosols by synchrotron radiation-induced X-ray fluorescence spectrometry

X-ray_25_3-sBoth the size and chemical composition of airborne particles have an effect on human health. Whilst the effects of size have been much studied,  many of the toxic chemicals in particles are at very low concentration and have been less studied. Monitoring their composition and concentration over time helps to determine their source. Synchrotron radiation-induced XRF spectrometry proves to be a good tool for this purpose.

Read more: Determination of trace element concentrations in ambient aerosols by synchrotron radiation-induced X-ray fluorescence spectrometry

   

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