H3 calibration has been performed, and is consistently around 6 (not 
0.6 as I wrote below!)

Paul

At 11:17 AM 12/05/2009, you wrote:
>HI Paul--
>
>H3+ calibration???
>
>take care
>
>gerry
>
>Paul Eby wrote:
>>Listmembers,
>>
>>Has anyone ever seen a calibration slope (known and measured values 
>>of two standards) deviate significantly from the expected 0.95 to 
>>1.05? We are consistently seeing 0.67.
>>
>>This is a new Delta Advantage. d13C and d18O on a pair of OzTech 
>>CO2 standards by dual inlet both have a slope of approximately 1, 
>>so the instrument is otherwise working fine (similar results by GasBench).
>>
>>Hydrogen is a different story: a pair of OzTech standards by dual 
>>inlet has a consistent slope of 0.67, and SMOW/GISP/SLAP by 
>>H/Device shows similar results. H3 is consistently around 0.6, and 
>>the calibration performed on the H/Device seems stable enough that 
>>I could probably ignore the issue and run.
>>
>>Any suggestions out there on how this could be?
>>
>>Paul Eby
>>
>>
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>>Alberta Research Council
>>
>>Vancouver Island Technology Park
>>3 - 4476 Markham St.
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>>
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