7890 GC front inlet leak chek

Discussions about GC and other "gas phase" separation techniques.

2 posts Page 1 of 1
Hi,
Thank you for your help in advance.
I found a leak in my 7890GC -MS system, I did a "front inlet leak check" from GC keypad the service mode. The pressure was the default 10psi, column flow 1 ml/min. However, the final result showed the total flow was below 0 and the column flow was higher than 1.
I appreciate any suggestions.
Thanks!
Bad or loose septum

Inlet seal

Leak at capillary inlet seal
2 posts Page 1 of 1

Who is online

In total there is 1 user online :: 0 registered, 0 hidden and 1 guest (based on users active over the past 5 minutes)
Most users ever online was 1117 on Mon Jan 31, 2022 2:50 pm

Users browsing this forum: No registered users and 1 guest

Latest Blog Posts from Separation Science

Separation Science offers free learning from the experts covering methods, applications, webinars, eSeminars, videos, tutorials for users of liquid chromatography, gas chromatography, mass spectrometry, sample preparation and related analytical techniques.

Subscribe to our eNewsletter with daily, weekly or monthly updates: Food & Beverage, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.

Liquid Chromatography

Gas Chromatography

Mass Spectrometry