RI Detction 1047A

[Barbara]

Hi

I am currently resurrecting an old RI Detector (1047A) and am wondering if it is compatible with a new Perkin Elmer HPLC?

[Consumer Products Guy]

We had a 1047A RID, and it could be connected to our Agilent systems as a standalone detector with an A/D digital converter board.

[Barbara]

Thank you for your reply, I might have more questions depending on how I get on with the detector!!

[Barbara]

I am currently trying to resurrect an RI Detector (1047A) one that has not been used in over 8 years. I have a light intensity error, and I have tried the troubleshooting points, I have flushed with Methanol and IPA. The TP1 and TP2 intensities together are -1.73 (they should be -4 to -5.5). TP1 (sample photo diode) is -0.25 and TP2 (reference photo diode) is -3.22. Should I continue flushing to try to bring these values up?

As the detector is old I am wondering if it would be wise to replace the flow cell?

[Consumer Products Guy]

Flush in the reference position with mobile phase (or IPA or methanol) for at least 15 minutes. Then switch to the sample position and let pump for 15 minutes to balance the sides.

[Barbara]

Thank you for your reply. I have performed what you suggested, and now the values have decreased considerably, both reference and sample together are at -0.85?
Do you think it would be an idea to buy a flow cell and lamp assembly, as Agilent no longer support this RI?

[Consumer Products Guy]

Thank you for your reply. I have performed what you suggested, and now the values have decreased considerably, both reference and sample together are at -0.85?
Do you think it would be an idea to buy a flow cell and lamp assembly, as Agilent no longer support this RI?

Lamp is relatively inexpensive, if I remember correctly. Flow cell is quite expensive. System should go to "waste" from the RID. If you are also using a VWD in-line, the VWD goes first, as RID flow cells can't handle backpressures.