Fibre-optic ultra-micro measuring cell for sample volumes of 0.7µl-5µl

• Nucleic acid analysis
• Determination of the incorporation frequency of fluorescent dye labels
• Protein analysis
• All UV/Vis Analysis utilizing the wavelength range of 190-1100nm

Hellma produces and certifies Solid and Liquid calibration filters made for testing spectrophotometers. Thus users ensure the traceability of their calibrations carried out to references of the NIST, by which an international comparability of measurement results is assured.

1. Solid Calibration Standards

Solid calibration standards are available for

• Checking the wavelength and photometric accuracy
• To check the wavelength accuracy
• To check the photometric accuracy (nominal absorbance at 0.25, 0.5, 1.0, 2.0)

2. Liquid Calibration Standards

Liquid calibration standards are available for

• To check for stray light according to Pharm Eur
• To check spectral resolution according to Pharm Eur
• To check photometric accuracy according to Pharm Eur
• Filter to check the wavelength accuracy with respect to Pharm Eur
• Set to check for stray light, wavelength accuracy, photometric accuracy and linearity of absorption