Flushing the tip using acetone in plastic wash bottle is not a very good Idea, since acetone being strong solvent, dissolve most of the plastic, so one needs to use very specific wash bottle.
Here i am. Never have i turned off a GC before taking out a detector 😂 Pro tip: Never let the ignitor cable fall into the electronics side of the GC... Huge pain to get that recovered, especially with a PAL (Gerstel etc.) sampler... And talking about the FID jet. If you don't overtighten the column nut (crushing the graphite ferrule), change the ferrule when it gets brittle and don't let the FID standby over 250 °C for long times (let the flame on though and keep the temperature between 150 and 250 °C at any times) it lives years without any problem. If it gets clogged by graphite, ultrasound and some methanol helps. If it fuses because of prolonged temperatures over 300 °C it needs to be replaced. And this needs much care doing it because it fatigues the metal and it can break during disassembly! I've had one that was kept at 360 °C for a whole week... Fused the hole together and while disassembling it it just broke off... We had to get a new FID assembly because of that. Multiple thousand dollars because someone didn't think about cooling it to a moderate temperature after his sequence and then it wasn't used for a week...
The solvent is acetone.If you leave the clean flame tip on a chemwipe for 10 min, the solvent will evaporate. Then the remaining traces of solvent will evaporate when you return the FID to the used temperature.Now if it makes you feel better you can place the flame tip in a small beaker and heat it in an oven at 100 C for 5 min.
Flushing the tip using acetone in plastic wash bottle is not a very good Idea, since acetone being strong solvent, dissolve most of the plastic, so one needs to use very specific wash bottle.
th-cam.com/channels/clJKlJplPCcFNKd-HzSwgA.html
Very good
Here i am. Never have i turned off a GC before taking out a detector 😂 Pro tip: Never let the ignitor cable fall into the electronics side of the GC... Huge pain to get that recovered, especially with a PAL (Gerstel etc.) sampler... And talking about the FID jet. If you don't overtighten the column nut (crushing the graphite ferrule), change the ferrule when it gets brittle and don't let the FID standby over 250 °C for long times (let the flame on though and keep the temperature between 150 and 250 °C at any times) it lives years without any problem. If it gets clogged by graphite, ultrasound and some methanol helps. If it fuses because of prolonged temperatures over 300 °C it needs to be replaced. And this needs much care doing it because it fatigues the metal and it can break during disassembly! I've had one that was kept at 360 °C for a whole week... Fused the hole together and while disassembling it it just broke off... We had to get a new FID assembly because of that. Multiple thousand dollars because someone didn't think about cooling it to a moderate temperature after his sequence and then it wasn't used for a week...
Thank you for the video-hhelped me to understand the FID better
What material(metal) is the spring made of?
The video is very good. Congratulations.
I still remember the day you visited my Viet Nam country. I worked with you and your wife to install new GC - prefractionator. Thanks for that time !
Interesting skill
Thanks for uploading the video
Nice
Tq sir. One week lo nenu total ga flow cell cleaning and jet cleaning dout lekunda undali sir.
The solvent is acetone.If you leave the clean flame tip on a chemwipe for 10 min, the solvent will evaporate. Then the remaining traces of solvent will evaporate when you return the FID to the used temperature.Now if it makes you feel better you can place the flame tip in a small beaker and heat it in an oven at 100 C for 5 min.
After the tip was washed，is it needed to dry it in an oven？