How to upgrade MS source to Extractor 350?

Hi,

I have a 5977 MS with SST source. I'm thinking of upgrading to Xtr 350. The MS can support it (There's an extra jack on the board to connect the extractor lens), but I was wondering if I need to make changes to the software or run the Parts Finder after installing the source. Any help would be greatly appreciated!

Thank you!

Ehsan

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paulsalverda 3 months ago in reply to EhsanKhedive +2

The lower the injection port pressure, the less realistic is the vapor volume calculator. It's not perfection in there and 82% is too much. With Chloroform you'd want the initial oven temperature to be…
paulsalverda 3 months ago in reply to EhsanKhedive +1

The G7080B with the diffusion high vacuum pump is not compatible with the extractor ion source. It can be run with the Stainless Steel and the Inert EI ion sources.
paulsalverda 3 months ago in reply to EhsanKhedive +1

G7080B 5977B with Diffusion pump and SS source G7081B 5977B with Turbomolecular pump and SS source G7077B 5977B with Turbomolecular pump and Extractor source G7078B 5977B with Turbomolecular pump…

0 Lance Nelson 3 months ago in reply to EhsanKhedive

For standby method I'd recommend inlet pressure ~5 psi. This is gauge pressure so it'll work to prevent air diffusing into the inlet if there are any small leaks. Keep in splitless mode, set purge flow to 20 mL/min, septum purge to 3 mL/min.
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0 paulsalverda 3 months ago in reply to EhsanKhedive

Keep constant flow 1.2 ml/min into the MS and do a Pulsed Splitless injection, tips in the help section of the Operating manual. Your system's diffusion high vacuum pump can only handle 2.0 ml/min maximum so do not exceed that ever.

If you have a 30m × 0.25mmid column installed, try these parameters.

Oven initial temp 45° C for 1 minute at least.

Pulsed splitless, 18.6 psi pulse for 0.5 minutes, then purge flow to split vent 50 ml/min at 1 minute. Gas Saver ON, 20 ml/min at 2 minutes.

What is your injection solvent? You can use the vapor volume calculator in the acquisition software to see if more sample will fit into the liner.
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