Spectrophotometers

From research to routine tasks, the IRAffinity-1 FTIR is ideal for high-precision infrared analysis to confirm, identify and detect foreign matter in raw materials, medical products, cosmetics, packages and coatings, among other fields.

Although gold nanoparticle production can be controlled to yield specific size ranges, both the concentration and size of nanoparticles must be checked following production. UV-Vis spectrophotometry is an established QC method for this; however cuvette spectrophotometers often require dilution of the nanoparticle solution before measuring, and volumes up to 3 mL.

Ultraviolet-visible (UV-Vis) spectrophotometry is arguably the most common as well as one of the oldest forms of absorption-based analysis. UV and visible regions of the electromagnetic spectrum are contiguous: UV wavelengths range from 10 to 4000 angstroms; they are visible from 4000 to 7000 angstroms.

Modular spectrometers and accessories can be combined for measurement of various spectral characteristics. In this application note we describe a spectrometer and multifunction accessory appropriate for measurement of absorbance, fluorescence, scattering or any combination of these phenomena.







