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Shimadzu SSI GC-2014 - ARA
My research is about the capability of associative N2-fixing bacteria to fix nitrogen and it will be observed by acetylene reduction assay. My laboratory has 3 column (Restex serial no. 935315, 937846, 939370).
1. Of the three column, which is suitable for the assay?
2. How to set up the GC for ARA, especially temperature (column, detector), flow rate (carrier gas), etc. Thank you. Respond to this member.
O'ryan Fiberoptic light source (Microscopy Questions and Answers forum)
Need specs for the transformer in an O'Ryan LS-150 fiberoptic light source. The transformer in this unit has burned out - there are no identification markings on the transformer. Advise this member.
Eppendorf 5417c braking circuit malfunction
Hi guys, I have two 5417C benchtop c'fuges that are burning-up their brake resistors just sitting ON at idle. I have replaced the main filter caps & several small transistors and such on the main PCB, but the symptom persists.
Has anyone dealt with this issue? The original resistors were blown-up and a couple of PCB traces were cooked and needed bypassing as well. I'm at my limits without schematics, and Eppendorf says there are none because they don't do component-level repairs. $2100 for a new board seems a bit steep to me. Provide feedback.
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