- by /u/Certifiedhater6969I’m working on my PhD and like many groups, our lab is currently losing a lot of funding—I’m set to graduate much earlier than expected for all the wrong reasons. I’m trying to get some job leads quickly, and have always been curious about working in a mass spec core. People who work or have worked in a core: What was your experience like? Do you have any tips? How hard is it to get hired? Our group is entirely mass spec, but we do imaging so the only chromatographic experience I have is a tiny bit of undergrad research […]
- by /u/NectarSpectraLabsI know they are mostly geared towards law enforcement, we are a harm reduction lab looking for more portable mass spec options and came across a cheap second hand FLIR G460, and are wondering what are people`s opinions on it? Anybody has any experience with them? We would probably need to use more advanced software options which seems to be from the little data out there that it is possible, using MS/MS, visualizing spectra, playing around with different parameters, building our own library, etc.. Has anybody used it to know if that is possible? submitted by /u/NectarSpectraLabs [link] [comments]
- by /u/jvgoghHi everyone, I’ve been working with UNIFI and Waters Connect for several years and keep running into a recurring issue that I haven’t been able to solve reliably. ISSUE: UNIFI occasionally integrates the wrong peak — either just before or just after the expected one. It happens more often at high concentrations, but I’ve also seen it at low and medium levels. I know there are reactive fixes (like refining retention times or switching from “best in RT window” to “largest in RT window”), and these can correct the integration after the fact. But they all rely on manually spotting […]
- by /u/Intrepid-Hair2129submitted by /u/Intrepid-Hair2129 [link] [comments]
- by /u/Emergency-Wasabi-437I was wondering if any of you have service manuals for your instruments? I'm a third-party service engineer who works with a wide range of instruments, so I'm looking to collect more service manuals for repair purposes. I can offer my existing manuals in exchange—I currently have manuals for Agilent, Shimadzu, Thermo Fisher, Waters, and other brands. If this post has offended anyone, I'll promptly delete it. Thank you. submitted by /u/Emergency-Wasabi-437 [link] [comments]
- by /u/Fun-Conference814Hi! Looking for user recommendations, we use a Waters UPLC with a PDA and QDa, PDA for quantification and QDa for identity. But, in future are looking at adding HRMS, optimally with ddMS scanning. Was looking RDa or other benchtop waters TOF, noting RDa is DIA only. Any experience with RDa? The first post I saw today was dragging UNIFI, so maybe not? Empower can be difficult, but makes submitting + report making easy. Are there any good ideas for HRMS (within the Waters family or external) that we could easily either implement with our existing UPLC have an entirely […]
- by /u/Mountain_Tune_7092Exactly what the title says. They have the absolute worst UI that I have ever used. If your lab has this absolute shit show of software, just burn it down. submitted by /u/Mountain_Tune_7092 [link] [comments]
- by /u/crepuscularitiaI'm a high school student doing a research project on phytoremediation of heavy metals in salt marshes, and I need a way to measure copper, zinc, and nickel that's inexpensive. Seeing the crazy (for my and my school's budget) prices of all these machines makes me feel like money is leaving my pockets, but this is really important to me! Can anyone help me find a way to measure these heavy metal contents please? submitted by /u/crepuscularitia [link] [comments]
- by /u/AnnaLexiHi, last year I was running a MRM method on a 6500Q. When I ran plasma samples I would get a RSD% of around 10%. Coming back to the method this year and my RSD% is all over the place for repeat injections of plasma from the same vial and even just repeat injections of my internal standard. The service engineer has visited twice. Cleaned the quads multiple times, but I still have high variability. Any ideas on why repeat injections from the same vial could give varying peak areas? submitted by /u/AnnaLexi [link] [comments]
- by /u/Acrobatic_Sink_8468hi. i’ve posted these results before. i’ve been trying read what i can to understand and ask better questions. 1) analyst reports its methamphetamine, i’m assuming hcl because d or l isn’t listed. 2) in the quality score match the match is d-methamphetamine. how would they conclude that if it wasn’t separated? 3) the one page says it’s a hexane blank, then the next run it says ba/hexane? what does that mean? 4) there is a never a confirmation analysis preformed just an initial screening ? 5) is there is ghost peak appearing at 58mhz which very likely could indicate […]
- by /u/P_O_Y_Asubmitted by /u/P_O_Y_A [link] [comments]
- by /u/sam_pazosubmitted by /u/sam_pazo [link] [comments]
Mass spectrometry websites, social media, journal feeds, and other links and items of interest to the mass spectrometry community.
