Calibration Standards

Calibration of Spectrophotometers

UV/Vis spectrophotometry is one of the most frequently applied methods in chemical analysis. It is used for example in clinical chemistry, pharmaceutical industry, scientific research and very often in quality assurance.

In recent years quality requirements, as outlined by EN ISO 9000, Good Laboratory Practice (GLP), Good Manufacturing Practice (GMP) or the recommendations of pharmacopeias (EP, DAB, USP) have become more influential. Formal performance verification of UV/Vis spectrophotometers is now essential. The performance verification tests required by major Pharmacopeias for UV/Vis spectrophotometers are checking the spectral resolution, the wavelength accuracy, the photometric accuracy, and checking for stray light.

The set of liquid Hellma calibration standards enables the checking of spectrophotometers with respect to

  • wavelength accuracy
  • photometric accuracy
  • stray light and
  • spectral resolution

at wavelengths from 198 nm to 650 nm.

The set of solid Hellma calibration standards enables the checking of spectrophotometers with respect to

  • the photometric accuracy in the visible range of the spectrum and the
  • wavelength accuracy in the ultraviolet and visible range

For further information click here

@