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Dear Community, the Autotune of my 7010B runs quite bad. The ramp plots (entrance lens, extractor, ion body, ion focus, post extractor) are scraggy. The mass peaks are fronting. In addition the GC-Runs are not reproducable due to fluctuating intensity even within one run (I multi-injected the same solution of PCB-Mixture and even the TIC-pattern… Show more
bpbur 
(to juliaalthammer) 1 hour ago (Show moreShow less)
(to juliaalthammer) 1 hour ago (Show moreShow less)Julia, Seeing the degree of contamination on that ceramic insulator suggests there is some serious source overload with respect to sample concentration. Q. Are you running primarily in Sim/MRM on this system? If so you are likely inundating the MS1 Quadrupole with the rejected masses after fragmentation. The HES source will typically generate…
MassHunter Workstation Software Qualitiative Analysis Workflows Version B.08.00 Service pack 1 Hello, When I run method workflow + print report (compound report with identification hits), a report generates with the same user chromatogram along with the peak list 3 times. I only need to see the user chromaogram and peak list once. How would I… Show more
Hi chemist23, What Find by algorithm and report template are you using? Does this occur only with files that have data already saved in them, or with files that have not yet been processed?
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What are the pros and cons of putting a TCD in series with an MS? I know that it's possible to put a TCD and FID in series but I want MS data, not FID data. I tried teeing off the column between the MS and TCD but all the samples keep going to the MS and nothing to the TCD. Are there any instructions on how to connect the TCD in series with… Show more
I decided to use a glass Y-connector with a polyamide resin seal and so far so good. The column is splitting between the TCD and MS and the data looks good. thank you
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We have Openlab Chemstation. All of a sudden, when we try and view data in the offline mode it is registering as a change to the sequence method. However, nothing has been changed, the audit trail shows nothing has been changed however it will not let us view any reports without saving the sequence first. This is an issue when it comes to… Show more
Hi Clairewhite1 I agreed with ryoboyles my be same parameters changed during load method and it's saved the change unintentionally, so I recommend two things Frist:Create admin username for calibration methods and when you want to changing parameters Second :take copies for all methods and save it on backup folder, can you used these copies…
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Hello! A "little" introduction first: I am performing LA-ICP-MS using our 7800 Agilent ICP-MS with MassHunter 4.4 software. Our lab does solution and laser ablation alternatively. Currently, I start my method with the solution set-up (spray chamber, nebulizer, and peri pump connected with the autosampler ON). I perform the automatic plasma… Show more
Hello, I have moved this post to the Atomic Spectroscopy technical area of the Community where it is more likely that someone with ICP-MS MassHunter expertise will see it.
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My lab has a 8800 triple quad ICP MS running MassHunter 4.5 (version C.01.05 build 583) on the acquisition computer (Windows 7). When we take batches to our offline data analysis computer running MassHunter 4.5 (version C.01.05 build 588.3) running Windows 10 we get an error that says the binary file is unreadable and we have to reprocess the… Show more
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I'm running a 1260 with a binary pump. The method I'm currently running starts out at 60% B (Acetonitrile, A is water). As the gradient increases to 95% B over my run I'm seeing a very weird pressure profile (as can be seen in the attached chromatogram) and the pump makes a bit of a hiccuping ratcheting noise. I have tried a pressure test and… Show more
Hey, This looks as if one of the valves on channel B is sticking. This will cause this sort of pressure profile. The system pressure test cannot reach the target pressure because the valve is likely sticking and not closing properly. This symptom is normally a result of the acetonitrile polymerizing and resulting in polymers that stick to the…
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