Solvent Information; Material Information - Agilent Technologies 1260 Service Manual

4
Using the Micro Vacuum Degasser

Solvent Information

Solvent Information

The information in this section applies to a complete system including
stainless steel capillaries and is not limited to the module described in
this manual. Exceptions may apply for some modules (e.g. Bio- inert
system, detector flow cells etc.). For details, please refer to manuals of
those modules.
Always filter solvents through 0.4 µm filters, small particles can
permanently block the capillaries and valves. Avoid the use of the
following steel- corrosive solvents:
• Solutions of alkali halides and their respective acids (for example,
• High concentrations of inorganic acids like sulfuric and nitric acid,
• Halogenated solvents or mixtures which form radicals and/or acids, for
• Chromatographic grade ethers, which can contain peroxides (for
• Mixtures of carbon tetrachloride with 2- propanol or THF dissolve

Material Information

Materials in Flow Path
Following materials are used in the flow path of this module:
34
lithium iodide, potassium chloride, and so on).
especially at higher temperatures (replace, if your chromatography
method allows, by phosphoric acid or phosphate buffer which are less
corrosive against stainless steel).
example:
2CHCl + O –> 2COCl
3 2
This reaction, in which stainless steel probably acts as a catalyst,
occurs quickly with dried chloroform if the drying process removes the
stabilizing alcohol.
example, THF, dioxane, di- isopropylether). Such ethers should be
filtered through dry aluminium oxide which adsorbs the peroxides.
stainless steel.
+ 2HCl
2
1260 Infinity Micro Degasser Service Manual