The benzene vapour reference is intended for use as a resolution check for spectrophotometers with spectral bandwidths (SBW) less than 1 nm. The product consists of 0.01 ml of benzene liquid sealed by heat fusion inside a UV-grade quartz cell. At room temperature, the benzene exists in the vapour phase within the cell.
The benzene vapour spectrum exhibits distinctive features that depend on the spectrophotometer’s SBW. Notably, peaks at 253.49 nm and 259.56 nm should be clearly resolved when SBW is 0.2 nm or narrower. However, this reference is not suitable for photodiode array spectrophotometers, as these instruments do not measure a continuous spectrum and typically cannot resolve these peaks adequately.
The benzene vapour reference is intended for use as a resolution check for spectrophotometers with spectral bandwidths (SBW) less than 1 nm. The product consists of 0.01 ml of benzene liquid sealed by heat fusion inside a UV-grade quartz cell. At room temperature, the benzene exists in the vapour phase within the cell.
The benzene vapour spectrum exhibits distinctive features that depend on the spectrophotometer’s SBW. Notably, peaks at 253.49 nm and 259.56 nm should be clearly resolved when SBW is 0.2 nm or narrower. However, this reference is not suitable for photodiode array spectrophotometers, as these instruments do not measure a continuous spectrum and typically cannot resolve these peaks adequately.
