Hi John,

Forget getting an answer from Sigma-Aldrich. Customers are tolerated as long as they place orders and pay their invoices. Asking for customer service...; good gad man, what were you thinking?

But seriously, what exactly does want replacing? The complete heater (#23801), a heating element (#24976 or #24977 for top or bottom, respectively) or the purifier cartridge (looks like an HPLC column), #22396?

All of the above are still available from Supelco (aka Sigma-Aldrich).You can order on-line via

Best regards,


Dr W Meier-Augenstein
Senior Lecturer in Stable Isotope Forensics

Environmental Forensics & Human Health Research Group
Queen's University Belfast
David Keir Building
39-123 Stranmillis Road
Belfast, BT9 5AG
United Kingdom

Tel.: +44 (0)28 9097 4015
Fax: +44 (0)28 9066 3754
Email: [log in to unmask]
URL (Isotope Lab):
URL (Research):
From: Stable Isotope Geochemistry [[log in to unmask]] On Behalf Of J T Hill [[log in to unmask]]
Sent: 24 August 2007 13:41
To: [log in to unmask]
Subject: [ISOGEOCHEM] SUPELCO Carrier gas Purifier

Hello All

Does anyone know where we can buy in the UK a replacement SUPELCO
carrier gas purifier part number, 2-3801 for a TC/EA which is
connected to a Delta XP? I have tried various suppliers including
Sigma-Aldrich but no one replies.

many thanks


John Hill
Mass Spectrometry Facility
University College London
Chemistry Department
20 Gordon St.

Tel:  020 7679 4605
Fax: 020 7679 7451