Glossary entry

Dutch term or phrase:

doorvoeren

English translation:

insert

Added to glossary by MoiraB
Sep 21, 2011 09:43
12 yrs ago
Dutch term

doorvoeren

Dutch to English Science Science (general) mass spectrometry
Text is about the basic principles of mass spectrometry. Here it's describing a double-focusing mass spectrometer, specifically the inlet system (sample inlet).

Om het massaspectrum van een verbinding te kunnen verkrijgen, is het noodzakelijk deze in dampvorm te brengen, tenzij het een gas betreft. Heeft de verbinding een dampspanning van > 1 Pa bij 200°, dan kan ze vanuit een voorraadreservoir (meestal met een inhoud van ≤ 1 l) via een “moleculair lek” in de ionisatiekamer worden ingelaten. Heeft men te maken met een thermisch labiele verbinding of met een stof, die een zeer lage dampspanning van ≤10-4 Pa bij 200-300 °C heeft, dan kan men zijn toevlucht nemen tot een direct inlaatsysteem. Hierbij wordt het te onderzoeken monster op het uiteinde van een direct insertion probe gebracht. De probe wordt vervolgens via een vacuümsluis direct in de ionisatiekamer gebracht. De probe tip kan worden verwarmd volgens een temperatuur programma. Niet al te complexe mengsels kunnen op deze wijze thermisch worden gefractioneerd. Het monster wordt met deze methode “off line” in de massaspectrometer gebracht.

Veel voorkomend is de koppeling van de uitlaat van een capillaire gaschromatograaf aan de massaspectrometer. Hierdoor is het mogelijk verbindingen “on line” in te brengen. Deze koppeling vindt plaats door **de capillaire kolom voor de gaschromatografische scheiding door te voeren** tot in de ionisatiekamer.

Based on the sketchy diagram, which shows the GC column inserted into the left side of the ionisation chamber, with ions emerging on the right side, I currently have '..by **connecting** the capillary column for the gas chromatographic separation into the ionisation chamber', but it doesn't quite feel right. Any suggestions on how to phrase this better?

Proposed translations

+1
1 hr
Selected

inserting

lijkt me een iets betere optie
Peer comment(s):

agree Bryan Crumpler
6 hrs
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "I should have read my own question! This seems the simplest solution and even gets some support elsewhere: www.prenhall.com/settle/chapters/ch31.pdf: In practice, most GC-MS interfacing is now done by simply inserting the capillary column directly into the ion source. And interfacing seems a good option for 'koppeling' here. Incidentally, also turned up quite a few ghits for phrases like 'The capillary column is interfaced directly to the ion source'. Thanks, everyone!"
6 mins

leading

by leading the capillary column for the gas chromatographic separation into the ionisation chamber
Something went wrong...
7 hrs

run through

The "door-" in "doorvoeren" can imply "through to completion" or "all the way through" or "completely through" or just plain "through", while the "-voeren" implies that some external force is acting upon the object being "doorgevoerd", be it a person or machine etc etc etc.

With "tot in" following, it carries the same effect as as:

A) "running [something] (all the way) through [something else] to [someplace]", e.g. running wires (all the way) through (until protruding out the other end of) a pipe.

OR

B) "running [something] into [another thing] through [something else]", e.g. running wires into the basement through the hole in the wall.

OR

C) "running [something] (all the way) through [something else] and into [another thing]", e.g. running wires (all the way) through the hole in the floor and into the basement.


[...] = replace with an object
(...) = can be omitted entirely


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Note added at 7 hrs (2011-09-21 16:57:36 GMT)
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Just to clarify with specific examples:

"...by running the capillary column (all the way) through to the ion(iz/sation) chamber"

"...by running the capillary column all the way through the opening and into the ion(iz/sation) chamber"

The ions should be eluting from right of the CC
Something went wrong...
+1
7 hrs

extend (into)

What seems to be meant is the end result of 'running through', option C.
Example sentence:

'..by **extending** the capillary column for the gas chromatographic separation into the ionisation chamber'

Peer comment(s):

agree LouisV (X)
1 day 5 hrs
Something went wrong...
16 hrs

plumbed

I think you can use this:
"An FID is constructed with a small volume chamber into which the gas chromatograph’s capillary column is directly plumbed."
http://www.specialtygasreport.com/features/385

"Capillary columns are usually plumbed directly into the ionization source"
http://mathapps.mercyhurst.edu/~jwilliams/specterp10/GCMS.sw...
(this starts to play automatically but you'll see the sentence after a few slides and I think it stops there automatically)

Google for capillair column gaschromo plumbed ionisation chamber
Something went wrong...
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