- by /u/BigHeed87I've been working hard with a team of engineers over the last year+ to build some really easy to use vendor-agnostic, cloud-based mass spec software. I've been a lurker, curious mostly in understanding the software problems and shortcomings. I last posted about publishing our open-source converter mzx However, now I'm at a place where I'd like to engage in the community and get some beta testers. We have 3 main modules: XIC, oligo-sequencing, and deconvolution. I'm looking for people who have mass spec data they would be able to share. In exchange, I can give access to run your analyses […]
- by /u/FandeathricketsFor example on a QE plus instrument, you provide a precursor mass of 150.00000 and a isolation width of 1 m/z you would expect the mass filter to allow anything from 149.00000 to 151.00000 to pass through? But in reality what range is actually getting through? Is the quadrupole able to resolve the difference between a 149.00000 and 148.9800 and only allow one to pass though or is there some tolerance either side of each edge of the mass filter? submitted by /u/Fandeathrickets [link] [comments]
- by /u/pataguccianerHello everybody, I am going crazy because our LC-MS system just keeps getting random errors in the middle of a sequence. We run a batch of around 120 samples and it just keeps getting the error "Cannot set property "AnalystSync.DoRun. The server is not running". The thing is that this error comes up randomly, sometimes after 10 samples, sometimes after 50 samples and it´s driving me insane. Does anybody know what could be the problem? Thank you so much in advance. submitted by /u/pataguccianer [link] [comments]
- by /u/SolidRaiderHi everyone! We're a small company and Agilent in Latam has higher prices than in the rest of the world. A nickel sampler cone is 2800 usd. Also by contract, we can't buy from another agilents supplier than local. We're seriously considering buying from GE worldwide. Cones, torch, bonnet, nebulizer, filters. Unfortunately they don't seem to have an octopole assembly. Any experiences with these parts? It would be very helpful, thanks in advance. submitted by /u/SolidRaider [link] [comments]
- by /u/Jack_H123You guys think it’s worth putting the instruments I have experience with (Agilent 7890, 8890 GC systems particularly) on my resume in general or should it only matter for other environmental analysis labs that use them? I’m trying to change career to get into biotech and I’m not sure if any employers are actually gonna care. submitted by /u/Jack_H123 [link] [comments]
- by /u/godgabbaHi All, As the title states I am trying to find the most ideal cart for the vanquish neo. We currently have a McMaster-carr AV cart. I like the design of it, and the fact that it has outlets, but the problem is it doesn’t support the weight of the Neo(the cart supports 150 lbs, the Neo is 145, but with reagents on top it surpasses 150). Does anyone have any recommendations for carts that have outlets that can support the Neo for under 500 bucks? Interested to hear what others with the system are using. Thanks submitted by /u/godgabba […]
- by /u/No-Pomegranate6942I know absolutely nothing about mass spectrometry. I have in the past 6 months failed 2 drug tests for 2 different drugs both confirmed by LC-MS/MS. First test cocaine, marijuana. I’ve never taken cocaine ever, and haven’t smoked weed since June 20th, 2023. (Only reason I remember the date is because it’s my fiancĂ©s birthday). The tests are administered post fight in a manner in which I remove the test from a packet, place the cotton swab under my tongue for somewhere between 5-10 minutes or until the color changes, then I myself place the test into a tube, and […]
- by /u/earmstrong12I am trying to help a computer science lab develop an algorithm to identify chemicals given mass spectrometry data. Currently they are solely training their algorithm on recognizing the M+H peak. Would it not be more useful to use the molecular ion peak since the M+H peak isn't always present during ionization? Also, I suggested to them using another parameter such as the base peak. Would that be helpful? submitted by /u/earmstrong12 [link] [comments]
- by /u/IllustriousBasket495Hey, I was about to do a GCMS analysis, but then I totally spaced and realized after starting the run that I picked the wrong method. I stopped it, but the "download initial parameters" in acquisition was grayed out. Did I mess up or miss something? submitted by /u/IllustriousBasket495 [link] [comments]
- by /u/kywx4What's the main difference among the two? What feature you like the other doesn't have? submitted by /u/kywx4 [link] [comments]
- by /u/quickmansStandard purchased Hela digest 250 ng injection. 75 um x 50 cm EasySpray column (trap & elute). Heavy chromatogram at the start. Is this a sign that the column is dying? submitted by /u/quickmans [link] [comments]
- by /u/xXchloeXx23Hi everyone, I'm an undergraduate sophomore and my grad student threw me in the deep-end today and I am looking for yall's help. I have only been in this research lab since the beginning of the spring semester. I have to give a presentation tomorrow 2/18 (just found out today 2/17) on data overview and data processing software. I learned today about how to use Xcalibur but not in detail and nothing but the name of freestyle. What's the difference and the pros and cons., or anything that you want to contribute. All I know about freestyle is that its […]
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