Have you also tried the cleaning out the dropper and the tubing with that fine stiff wire? The acid reservoir vent stopcock isn't plugged is it? Seems like you should be able to clean rather than purchase. Good luck.

andy



 Andrew Schauer
ISOLAB
Department of Earth and Space Sciences
University of Washington
Seattle, WA 98195


206.543.6327
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----- Original Message ----
From: tcp121 <[log in to unmask]>
To: [log in to unmask]
Sent: Thursday, May 8, 2008 2:31:03 PM
Subject: Re: [ISOGEOCHEM] acid valve capillary for KIEL IV

Hi Million...

Have you tried advancing the acid tubing at all?  We find that over  
time the acid tubing at the valve eventually loses its elasticity and  
does not expand when the valve itself is opened.  When this happens we  
remove the tubing from the valve and cut away the collapsed portion,  
then advance the tubing so that a fresh part is within the valve.  
This way you can greatly extend the life of the acid tubing, until it  
becomes too short to advance it further.

Tim


On 8-May-08, at 3:24 PM, Million Hailemichael wrote:

Hi all,

Does anyone knows an alternative supplier other than Therm for an acid  
valve
capillary (part #0598651) for KIEL IV Carbonate device.  I checked  
Thermo
and they are very expensive almost $360.00 only for the capillary. The
sequence terminates after few runs because of timing out when acid  
droping.
I tried increasing the acid drop time from 120 sec to 180 sec, it was  
fine for
few runs and start terminating the sequence again.


Thanks

Million



-------------------------------------------------
Tim Prokopiuk
B. Sc. Geology/Technician
Saskatchewan Isotope Laboratory
Room 241
Department of Geological Sciences
University of Saskatchewan
114 Science Place
Saskatoon, Saskatchewan, Canada
S7N 5E2
Phone: (306) 966-5712
Fax: (306) 966-8593
Email: [log in to unmask]