We often use cluster analysis and PCA to analyse the Raman images of biological tissues and cells. These powerful chemometric methods can detect structures within biological samples which often contain no pure biochemicals. The EmptyModelling feature is a user-friendly version of multivariate curve reso...
Presumptive testing completed without handling bulk material has two possible avenues: (1) utilizing spectroscopy-based techniques (e.g., Raman spectroscopy [[2], [3], [4]], Fourier transform infrared (FTIR) spectroscopy [5,6]) that can penetrate packaging material or (2) utilizing trace det...
Microscopescan help when looking into foreign materials, such as a strand of brush hair, a fiber from a cloth stuck to the paint, or even a partial fingerprint of the painter. A fingerprint obtained from a suspected piece of forgery can be matched with those obtained from an authenticated wo...
The rapid advancement of nanotechnology has raised concerns about its environmental, health, and safety risks.8NPs, due to their small size and unique properties, pose potential health risks as they can cross biological barriers, entering the body through inhalation or ingestion, and affecting the b...
UV Spectroscopy uses ultraviolet light to determine the absorbency of a substance. In simple terms, the technique maps the interaction between light and matter and measures. As matter absorbs light it undergoes either excitation or de-excitation, which generates what is known as...
Ultrafast chemical reactions can be initiated using a laser and the behaviour of the molecules monitored using infrared or UV-Vis spectroscopy. The ultrafast in ultrafast spectroscopy refers to the pulse duration of the light used to illuminate the sample and initiate or detect reaction; whilst the...
This plasma is ignited and emits a unique emission spectrum that can be used to detect and quantify individual elements present in the sample. As well as detecting metals and semimetals, Spark Spectroscopy can be used to identify non-metals such as oxygen, nitrogen, carbon, sulphur and ...
For very fast reactions, or for reactions that at times exhibit periods of rapid change in composition, more data points are required than offline methods can provide. Real-time, in-situ spectroscopic analysis by ReactIR or ReactRaman is ideal for these situations as well as for reactions that...
The control of the relevant parameters including additions can be automated and pre-programmed, so experiments can be safely run while recording all reaction parameters, 24 hours a day. The individual steps of the process of the polymerization reaction together with the experimental data are ...
The plasmon by its nature creates an electrical field around the excited gold nanoparticles that enhances the Raman scattering cross section of nearby molecules. This phenomenon is the basis of surface-enhanced Raman spectroscopy (SERS) and can lead in, theory, to single molecule detection and ident...