CAS no/EC no
Concentra-
tion
Chemical
N/A
Max 0.2%
TFA
Acetonitrile/water/Trifluo-
roacetic acid (TFA)
2
75-08-1/ 200-837-3
100%
Ethanol
67-63-0/ 200-661-7
100%
Isopropanol
74-93-1/ 200-659-6
100%
Methanol
N/A
Max 5%
formic acid
Water/organic mobile
phase/formic acid
1
Organic solvents can penetrate weaknesses in PEEK tubing walls more easily than water based
buffers. Special care should therefore be taken with prolonged use of organic solvents close
to pressure limits.
Note: Quaternary valve is not resistant.
Depending on pressure, tubing between pump head and pressure monitor needs to be changed.
See ÄKTA avant User Manual for more information.
2
Mobile phase system.
It is recommended to replace the mixer sealing ring with the highly resistant
O-ring (product code 29-0113-26) if the system is to be exposed to organic
solvents or high concentrations of organic acids, such as acetic acid and formic
acid, for a longer period of time.
Note:
Salts and additives for
hydrophobic interaction
chromatography (HIC)
The following chemicals are suitable for continuous use.
CAS no/EC no
Concentra-
tion
Chemical
12125-02-9/ 235-186-4
2 M
Ammonium chloride
7783-20-2/ 231-984-1
3 M
Ammonium sulfate
107-21-1/ 203-473-3
50%
Ethylene glycol
56-81-5/ 200-289-5
50%
Glycerol
ÄKTA avant Operating Instructions 29101556 AB
185
8 Reference Information
8.2 Chemical resistance guide
8.2.2 Chemical resistance specifications
