Chromatography Forum

Posted: **Tue Jan 13, 2009 4:54 am**

Anyone has this problem like I have?

I have an Agilent 7890 with PTV and an ALS. Everything seems to operate well except that when doing an injection, the final punch is rather slow, I mean the syringe moves down and up. The plunger is just normal.

My first thinking is that's due to the PTV Inlet.

Thanks for any suggestion.

Posted: **Tue Jan 13, 2009 7:13 am**

You are right - the syringe has to go more slowly into the PTV if the inlet has a septumless seal.

Peter

Posted: **Wed Jan 14, 2009 3:53 pm**

You are right - the syringe has to go more slowly into the PTV if the inlet has a septumless seal.

Peter

Thank you Peter

Chromatography Forum

Agilent 7890 with PTV and ALS 7683B ?

Agilent 7890 with PTV and ALS 7683B ?