Agilent Technologies 1100 Series Bedienerhandbuch PDF herunterladen (Seite 190)

180 1100 Series Capillary LC System Manual

A Safety Information

• High concentrations of inorganic acids like nitric acid, sulfuric acid

especially at higher temperatures (replace, if your chromatography method

allows, by phosphoric acid or phosphate buffer which are less corrosive

against stainless steel).

• Halogenated solvents or mixtures which form radicals and/or acids, for

example:

2CHCl

+ O

→ 2COCl

+ 2HCl

This reaction, in which stainless steel probably acts as a catalyst, occurs

quickly with dried chloroform if the drying process removes the stabilizing

alcohol.

• Chromatographic grade ethers, which can contain peroxides (for example,

THF, dioxane, di-isopropylether) such ethers should be filtered through dry

aluminium oxide which adsorbs the peroxides.

• Solutions of organic acids (acetic acid, formic acid, and so on) in organic

solvents. For example, a 1-% solution of acetic acid in methanol will attack

steel.

• Solutions containing strong complexing agents (for example, EDTA,

ethylene diamine tetra-acetic acid).

• Mixtures of carbon tetrachloride with 2-propanol or THF.

• Avoid the use of alkaline solutions (pH > 8.5) which can attack the fuse

silica from the capillaries.

Agilent Technologies on Internet

For the latest information on products and services visit our worldwide web

site on the Internet at:

http://www.agilent.com

Select Products > Chemical Analysis

It will provide also the latest firmware of the Agilent 1100 series modules for

download.

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Agilent Technologies 1100 Series Bedienerhandbuch Seite 190