Thanks a lot to all who replied for the useful hints. I added a few 
items to my MS-lab-tools list:

- PC monitor
- floppy disk
- balance
- compass

Best regards, melanie

Christopher Harrod schrieb:

>One 'fun' way is to place a rather expensive and sensitive balance close to the mass spec and then wonder why the damned thing will not tare when the ms is in operation.
>
>Chris
>
>-----Original Message-----
>From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf Of Arnold van Dijk
>Sent: 04 February 2008 18:09
>To: [log in to unmask]
>Subject: Re: [ISOGEOCHEM] magnetic shield between mass spectrometers?
>
>Hi Melanie,
>
>I checked influence by monitoring one MS with CO2 on the side of a peak
>and and have the other MS jump the magnet from zero to max (like when
>you start a slow magnet scan on Thermo machines). If there's no
>influence, ride the MS half a meter away and your sure.
>Arnold
>
>Melanie Behrens schreef:
>  
>
>>Dear all,
>>
>>Has anybody tried a magnetic shield between two Isoprimes or other
>>mass spectrometers to avoid interference during magnet hysteresis? Is
>>this possible at all or is it best to place instruments as far apart
>>as possible?
>>
>>Best regards,
>>Melanie
>>
>>    
>>

-- 
Dipl.-Ing. (FH) Melanie Behrens

Alfred Wegener Institute
Helmholtz Center for Polar and Marine Research
Glaciology

P.O. Box 12 0161			Am Alten Hafen 26
27515 Bremerhaven			27568 Bremerhaven

Tel.: 	+49-471-4831-1396
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