Buchi Multivapo P-12 Manual de usuario descargar pdf (Pagina 33)

4 Description of function

33 Multivapor™ Operation Manual, Version E

4.5 Blank adapters (optional)

Fig. 4.10: Blank adapters

If less than the maximum number of samples are

being evaporated, the vacant positions need to

be occupied either with empty sample tubes or

with the optional blank adapters. These adap-

ters consist of a closed bottom side but the

same outer dimensions as the standard adap-

ters.

It is not necessary to distribute the samples

equally across the crystal rack. It is therefore

possible to accommodate the front positions

with the samples and the back positions with the

blank adapters.

For very harsh conditions, such as evaporation

of triﬂuoro acetic acid (TFA), the adapters are

also available in PEEK.

4.6 PE frits

In order to reduce contamination of the vacuum

cover by foaming samples or boiling retardation,

an optional porous PE frit can be placed into

the tube adapters closing the vapor duct. This

measure also allows sample adsorption onto

silica for chromatographic purposes (dry loading)

by retaining the silica inside the tube.

Fig. 4.11: PE frits

4.7 Adapter spring

Springs on the top of the tube adapters are

optionally used to facilitate the opening of the

vacuum cover.

Fig. 4.12: Adapter spring

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 75 76

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Buchi Multivapo P-12 Manual de usuario Pagina 33