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- Posts: 2
- Joined: Wed Nov 22, 2017 7:21 am
I checked the support documents of the 1260 series HPLC. Agilent recommended S/S tubing for connection between column and DAD detector in all documents. Moreover, for G4212-60007 and G4212-60008,
The use of Peek-FS capillaries is not recommended. In combination with the SST zero dead volume fitting (e.g. at the inlet) the capillary could break and the glass particles could block/damage the flow cell.is not recommended. In combination with the SST zero dead volume fitting (e.g. at the inlet) the capillary could break and the glass particles could block/damage the flow cell.is not recommended. In combination with the SST zero dead volume fitting (e.g. at the inlet) the capillary could break and the glass particles could block/damage the flow cell.
The pressure relief valve is designed to protect the flow cell of an Agilent 1200 Infinity Diode Array Detector (G4212A/B). Agilent strongly recommends installing the pressure relief valve at the outlet of the detector as soon as a second detector is installed like in LC/MS applications.
Agilent service had been used PEEK tubing between the column and the flow cell of the DAD detector. Moreover, my system does not have a pressure relief valve and the service person had never checked pressure for the requirement of the pressure relief valve.
I contacted the Agilent service in Turkey and explained all these. However, they have never accepted the use of wrong tubing and requirement of the pressure relief valve. They request 3000 dollars for replacement of the flow cell. This is not acceptable. I think the flow cell was blocked because of the mistake of Agilent service (PEEK tubing instead of S/S tubing used between column and DAD detector) or the absence of a pressure relief valve.
I am looking forward to hearing any response!
Kind regards
Prof. Cengiz GOKBULUT