Agilent Technologies Agilent 1260 Infinity System User's Manual page 108

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Appendix
Solvent Information
Diamond-Like Carbon (DLC)
Diamond- Like Carbon is inert to almost all common acids, bases and
solvents. There are no documented incompatibilities for HPLC applications.
Fused silica and Quartz (SiO
Fused silica is used in 1290 Infinity Flow Cells and capillaries. Quartz is
used for classical flow cell windows. It is inert against all common
solvents and acids except hydrofluoric acid and acidic solvents containing
fluorides. It is corroded by strong bases and should not be used above pH
12 at room temperature. The corrosion of flow cell windows can negatively
affect measurement results. For a pH greater than 12, the use of flow cells
with sapphire windows is recommended.
Gold
Gold is inert to all common HPLC solvents, acids and bases within the
specified pH range. It can be corroded by complexing cyanides and
concentrated acids like aqua regia.
Zirconium Oxide (ZrO
Zirconium Oxide is inert to almost all common acids, bases and solvents.
There are no documented incompatibilities for HPLC applications.
Platinum/Iridium
Platinum/Iridium is inert to almost all common acids, bases and solvents.
There are no documented incompatibilities for HPLC applications.
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1260 Infinity Binary LC - System User Guide