Several years ago I looked into making some H2 at realistic isotope ratio
and John Kilby at ICON, who sell HD, put me in touch with Jack Marrin
(909)653-6780 who has a company that specializes in adding small amounts of
gas to large tanks to make standards. I talked with Jack Marrin and he
said he would be happy send us a small sample of H2 from several tanks,
that we could then analyze, and then tell him how much HD from ICON to
add. The only problem was that Jack Marrin only kept the H2 gases around
for a week or so, so we would have had to tell him in that time how much HD
to add in a weeks time. When I made found out about this, we did not have
our H2 mass spec installed so I did not proceed. Since then the
consumption of the reference gas supplied by Oztech has been slow enough
that I have not need to buy any H2. However, the option of using Jack
Marrin's firm may still be viable.
At 09:43 AM 11/14/01 -0800, you wrote:
>I have purchased two tanks of UHP hydrogen in the last few months from
>Praxair with values of around -380 permil. I did a little digging and found
>out that the tanks originated in Praxair's facility in Edmonton. They
>source the gas from another company nearby in Fort Saskatchewan: Apodan. I
>believe that the number for Praxair in Edmonton is 780-449-7185.
>At 11:26 AM 11/14/01 -0600, you wrote:
>>I know this question has been discussed before but I cannot find answers
>>anywhere in the archives.
>>Has anyone found a North American supplier of research grade H2 gas
>>cylinders in the "normal" working range (0 to -428). I am not talking about
>>those costly low pressure 1 L "certified" ref gas cylinders from Messer or
>>Oztech suitable for dual inlet ref gas.
>>We have recently tested a Peak Scientifc Hydrogen HG200 gas generator and it
>>produced 100 PSI 99.999 H2 isotopically close (+/- 30 permil)to the water
>>put in the device, but its quite costly (~5500 USD) to justify for the
>>Am just wondering if anyone has found a supplier in US or Canada yet.
>>(Address and cost would be nice). I imagine these days it would be pretty
>>hard to ship a cylinder of H2 from Europe.
Paul D. Brooks,
147 Higard Hall MC 3110,
UC Berkeley, Ca. 94720-3110.
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