Buying a GC - Need Advice on Config/Parts options 🙏

[clasperj]

Dear all,

My team and I would like to buy a GC specifically for greenhouse gas (GHG) analysis, e.g. CO2, CH4, N2O... We received a quotation from Agilent but they just included many parts and asked us to config. We are no expert in the matter. I was wondering if anyone could offers some help in getting the right parts. Obviously, we would like to keep the cost down, but we will get whatever that's necessary. Thank you so much for your time! Price is in USD.

1. G3545A Agilent 8890 Custom GC Analyzer $32K
2. 8890-0467 SP1 Greenhouse Gas Wide Range CO2 $10K
3. G3545A#211 8890 FID Accy Optimized For Capillary $6.8K
4. G3545A#221 TCD with EPC Mounted Left-Hand Side $7.8K
5. G3545A#231 Electron Capture Detector with EPC $11K
6. G3545A#299 Reverse Detector Positions
7. G3545A#301 Auxiliary EPC 3 Channel 0-100 psi $4K
8. G3545A#305 Factory Plumbing for Quick Installation $0.7K
9. G3545A#306 Exhaust Deflector Assy $0.2K
10. G3545A#307 Adds Nicket Catalyst Methanizer $3.8K
11. G3545A#309 Pneumatics Control Module PCM x 2 = $9.1K
12. G3545A#504 Gas Sampling Valve Loop x 2 = $0.5K
13. G3545A#754 SVO Heated Automated Valve Box 4 Valves $10K
14. G3545A#801 10-Port Valve Gas Sampling x 2 = $7K
15. G3545A#872 0.530mm id Cap Column to Valve Kit $0.2K
16. G3545A#904 Custom Plumbing Four P 225 MAX x 2 = $6.9K
17. 5190-0521 Greenhouse Gas Checkout Sample $2K
18. RMSN-2 Big Universal Trap 1/8" Fttgs Nitrogen $0.6K
19. RMSH-2 Big Universal Trap 1/8" Fttgs Helium $0.6K
20. RMSHY-2 Big Universal Trap 1/8" Fttgs Hydrogen $0.6K
21. HMT200-2 Trap Hydrocarbon H2O 1/8" 200cc $0.2K
22. OT3-2 Trap O2/H2O 1/8" $0.2K
23. 19199M Install Kit for GC without Gas Purifiers $1.4K

[antonk]

*** G3545A#231 Electron Capture Detector with EPC

Interesting, what greenhouse gas Agilent propose to detect with ECD?

[Consumer Products Guy]

*** G3545A#231 Electron Capture Detector with EPC

Interesting, what greenhouse gas Agilent propose to detect with ECD?

Refrigerants?

[Peggsy]

nitrous oxide.......

[Peter Apps]

If you want to keep the cost down you need to be looking at other suppliers as well.

[AICMM]

Your answer is very complicated. Even for a brand new, plunked on the counter instrument, I would have a few issues/questions about this configuration. For one thing, I do not see the need for a TCD. I personally have not had great luck with the Agilent methanizer, I have used ones I trust much more in my work. Then, if you go away from an Agilent methanizer, do you really need a TCD anymore (what is that quoted for here - high CO2?)

In general, you could save yourself some money by not buying brand new. You could save yourself some money by buying your own standards. You could save yourself some money by not buying their methanizer. Did you ask them to provide you with blending for standards? That could be why they have so many pressure controllers. You might be able to live with fewer pressure controllers.

If you asked for a Cadillac, you will not be paying Toyota prices. If you asked for a Toyota, then you can certainly trim this down.

Best regards,

AICMM