Chartrand et al. (2007) reported increased D/H standard deviation due to 
a cumulative load of chlorine from GC-TC-IRMS of 71 samples of 
1,2-dichloroethane:
Rapid Communications in Mass Spectrometry, vol. 21, pages 1841-1847.

Hagit Affek wrote:
> Following up on Devon's question: do people have problems running 
> similar samples, containing halogenated organics, for compound 
> specific Hydrogen isotopes?
>
> thanks,
> hagit.
>
>
>
> Bolotin, Jakov wrote:
>> Hi Devon,
>>  
>> Not really. We have to reoxidise the reactor from time to time.
>>  
>> Regards
>>  
>> Jakov
>>
>> ------------------------------------------------------------------------
>> *From:* Stable Isotope Geochemistry [mailto:[log in to unmask]] 
>> *On Behalf Of *Devon Rowe
>> *Sent:* Mittwoch, 31. Oktober 2007 06:16
>> *To:* [log in to unmask]
>> *Subject:* [ISOGEOCHEM] residual chlorine - a problem?
>>
>> To any of you who run samples (e.g., industrial ground waters) with 
>> appreciable concentrations of chlorinated ethenes for carbon (via 
>> GC-C-IRMS), have you seen any negative effects (short term/long term) 
>> due to chlorines entering into your mass spec?
>>  
>>
>> Devon
>>
>> ------------------------------------------------------------------------
>> This message contains information that may be confidential, 
>> privileged or otherwise protected by law from disclosure. It is 
>> intended for the exclusive use of the Addressee(s). Unless you are 
>> the addressee or authorized agent of the addressee, you may not 
>> review, copy, distribute or disclose to anyone the message or any 
>> information contained within. If you received this message in error, 
>> please contact the sender by electronic reply to 
>> [log in to unmask] and immediately delete all copies of the message.


-- 
Arndt Schimmelmann, Ph.D.
Senior Scientist
Indiana University
Department of Geological Sciences
Biogeochemical Laboratories
1001 East 10th Street
Bloomington, IN 47405-1405
Ph   (812) 855-7645
home (812) 339-3708
FAX  (812) 855-7961
e-mail:   [log in to unmask]
personal home page:   http://www.indiana.edu/~geosci/people/faculty2.php?n=schimmelmann
home page of Biogeochemical Laboratories:
http://www.indiana.edu/~geosci/research/biogeochem/