Metrohm Spectrosense - Manual (Page 32)

2 Working with the Spectrosense
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Spectrosense, Instructions for Use
2.2 Practical hints for titrations
• You can remove the last water drop on the mirror if you hold the Spec-
trosense against the wall of the titration vessel.
• Selection of the wavelength: Select the wavelength such that you have
a small absorption at the beginning and large absorption at the end of
the titration. The following wavelengths are available: 523 nm (blue-
green), 610 nm (orange)
• Take care not to have air bubbles on the mirror and in the optical path.
Attention!
Please note that the light guide of the Spectrosense is made of
PMMA and therefore is not resistant to some solvents!
Avoid the contact of the light guide with the following solvents:
aldehydes, alcohols, amines, bases/leaches, esters, ethers, glycols,
ketones, hydrocarbons (aliphatic, aromatic, halogenated), mineral
oils, oxidants (strong), vegetable oils, inorganic acids.