Knauer Azura Degasser DG 2.1S, Инструкция по эксплуатации

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Intended Use 7
DG 2.1S user manual V6880, version
3.3

Thanks to the molecular structure of the Teflon AF
®
membrane, only a very
small surface is required for degassing the solvent. Thus the risk of carryover
during a solvent change is reduced.
The special pump design makes it possible to flush the pump head with a small
blast of air, to remove solvent fumes, which could escape from the vacuum
chamber.
Eluents
Even small quantities of other substances, such as additives, modifiers, or salts
can influence the durability of the materials.
Note: The list of selected solvents was compiled based on research in the perti-
nent literature and is only a recommendation by the manufacturer. If there is
any doubt, contact the technical support of the manufacturer.
Not suitable eluents
 Chlorobenzene

Chloroform

C
oncentrated acids
 C
oncentrated bases

E
luents containing particles

H
alogenated hydrocarbons, e.g.
Freon®

Heptane

Hexane
Less suitable eluents

Methylene chloride

D
iluted phosphoric acid

S lightly volatile eluents
Suitable eluents

Acetic acid, glacial

Acetone

Acetonitrile

Buffers

Dimethyl sulfoxide (DMSO)

Ethanol

Ether

Ethyl acetate

Isopropanol

Hexafluorisopropanol

Hydrochloric acid

Hydro fluoro solvents

P
erfluorinated eluents, e.g.
Fluorinert® FC-75, FC-40

P
erfluorinated polyether, e.g.
Fomblin®

Sodium azide

Tetrahydrofuran (THF)

Toluene

Methanol, anhydrous

Methyl ethyl ketone

Methyl isobutyl ketone

Methyl tert-butyl ether

N,N-Dimethylacetamide

N,N-Dimethylformamide

n-Propyl alcohol
 NMP (N-Methyl-2-pyrrolidinone)
 Salt
 Water