Apiezon-N grease has worked for us well.  In the out position wipe off the 
piston with a kimwipe and then put on a very thin coating.
Shapna
----- Original Message ----- 
From: "Penny Higgins" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, July 30, 2007 6:32 AM
Subject: [ISOGEOCHEM] lubricating lift cylinder on reference open split


> All,
>
> Can someone recommend what I can use to lubricate my open splits? They're 
> sticking a bit, and moving slowly, so I'm not getting my lovely square 
> reference peaks.
>
> Would mineral oil (like what I have in the rotary pump) be OK, or is there 
> a grease that would be better?
>
> Thanks,
>
> ~Penny
>
> *******************************************************************
>                       Dr. Pennilyn Higgins
>                        Research Associate
>
>                             "SIREAL"
>   Stable Isotope Ratios in the Environment Analytical Laboratory
>
>         Department of Earth and Environmental Sciences
>         University of Rochester
>         227 Hutchison Hall
>         Rochester, NY 14627
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>                    [log in to unmask]
>
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