AZURA® Detector RID 2.1L / RID 2.1L HighFlow Instructions V6750
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Product information
12.3 Non-metals
Diamond-like carbon (DLC)
This material is characterized by a high hardness, a low coefficient of fric-
tion and thus low wear. In addition, it is highly biocompatible. DLC is inert
against all acids, alkalis and solvents commonly used in HPLC.
Ceramic
Ceramic is resistant against corrosion and wear and is fully biocompati-
ble. An incompatibility against acids, alkalis and solvents commonly used
in HPLC is not known.
Alumina (Al2O3)
Due to their high resistance to wear and corrosion, alumina ceramic is
used as a coating for mechanically stressed surfaces. It is a biocompatible
material with low thermal conductivity and low thermal expansion.
Zirconium oxide (ZrO2)
Zirconia ceramics are characterized by their high mechanical resistance,
which makes them particularly resistant to wear and corrosion. It is also
biocompatible, has low thermal conductivity and is resistant to high
pressures.
Sapphire
Synthetic sapphire is virtually pure monocrystalline alumina. It is biocom-
patible and very resistant to corrosion and wear. The material is character-
ized by a high hardness and a high thermal conductivity.
Ruby
Synthetic ruby is monocrystalline alumina and gets its red color by the
addition of some chromium oxide. It is biocompatible and very resistant
to corrosion and wear. The material is characterized by a high hardness
and a high thermal conductivity.
Mineral wool
This insulating material consists of glass or stone wool fibres and isolates
in high oxidizing conditions and at high temperatures. Mineral wool is
valid as commonly inert against organic solvents and acids.
Glass, glass fibre, quartz, quartz glass
These mineral materials are resistant against corrosion and wear and are
mostly chemical inert. They are compatible with oils, fats and solvents and
show a high resistance against acids anf lyes up to pH values of 3-9. Con-
centrated acids (especially hydrofluoric acid) may embrittle and corrode
the minerals. Lyes may ablate the surfaces slowly.
12.4 Metals
Stainless steel
Stainless steel is, apart from PEEK, the standard material in HPLC.
Steels with WNr. 1.4404 (316L) are used, or with a mixture of higher
compatibility.
