UV-VISIBLE SPECTROSCOPY

What is it?

Ultraviolet-Visible (UV-Vis) spectroscopy provides information about structure, formulation, and stability of the materials in solution.  Both solids and liquid samples can be analyzed at concentrations in the parts per million (ppm) ranges.  Absorption spectra are produced when ions or molecules absorb electromagnetic radiation in the ultraviolet or visible regions.  The intensity of the absorption is proportional to the number, type and location of colour absorbing structures in the molecule.

Acsion's Capabilities

• Chemical identification of solutions                                                                                   hp8451A Diode Array Spectrophotometer
• Quantitative analysis of:
    - Trace chemicals
    - Environmental agents
    - Biochemicals
    - Metabolites
    - Degradation products

Customer Benefits

• Simple rapid accurate analysis
• Quantitative
• Unique chemical identification by comparison with spectra in standard libraries
• Yields information on double bonds and aromatic conjugation
• Characteristic groups can be recognized in molecules of widely varying complexities
• Analysis of both liquid and solid samples possible

Applications

• Quantitative determination of chromophores concentrations in solution
• Impurity determination by spectrum subtraction
• Determination of reaction kinetics