mass spec
-Slang for Mass spectrometry. NOT mass spectroscopy… spectroscopy is NOT the same as spectrometry. Spectroscopy uses light… this spectrometry does not… -A common tool amongst chemists of all varieties since it can distinguish between molecules based on very small differences in mass. In principal it works by ionizing a molecule with some sort of ionization source (electron impact, electrospray ionization, chemical ionization, MALDI, ect…), the charged molecule is then accelerated through a mass selector, which can vary in form from a magnetic sector to a quadrupole, to a time of flight (TOF) selector. After selection, the molecule is directed to a detector where it is measured or directed to another portion of the apparatus for further experimentation. Mass spectrometry has been coupled with many separation methods such as HPLC, GC, and CE to yield quantitative information, while tools such as ICR has been developed for studies of reaction dynamics. Many experiments have been devised to measure very low concentrations of analyte since the sensitivity and signal to noise are so high. Also, the resolution of many spectrometers is quite good, allowing for molecules of similar mass to be distinguished. Organic chemists tend to use it for structure elucidation since a pattern of fragments can be used to piece together the structure when combined with other methods such as NMR and FTIR.
The Urban Dictionary Mug
Fucking awesome. Bought this while drunk and don't regret it.
Cole M. gifted one for me on my birthday. I will never forget that day. 10/10
I didn’t get one yet but if I did it would also be for Cole M.’s girlfriend, we would have amazing sex
Was a gift and arrived on time. Just as advertised. Lots of fun.
The price is a little bit expensive, but the gift arrived as ordered. Thanks!
The price was a little expensive, but the gift arrived as ordered. Thanks!
Great mug got one for my highschool crush
I was very pleased with the mug and I was thrilled that I could purchase a customized item that perfectly suited the person I was gifting. The only issue I had was that it didn't have the quote from the tv show the word came from as that was pictured on the mug prior to purchase.
Came out just as described! Had the full definition. Very pleased!
Perfect gift As a joke I gave one to my mate but I costumised it. It said tom drunk 24/7 ugly and got lovely hair. The lovely hair part was a joke coz he don’t have any. It was his favourite gift he got for his birthday and he drinks his beer out of it 😂
Great mug…. Got one for Cole M.’s girlfriend.
I ordered a customized mug for my gf and everything came out well. There were no autocorrect mistakes and the mug was unscratched. Would shop here again
Also got one for Cole M.'s girlfriend, even faster sex.
Istgd imma force my mum to buy this idek hw i find out but this shit looks fucking fire
Perfect coffee cup for a hockey fan. Great conversation starter.
Perfect gift! My husband loved it. So funny and clever!
Great mug… got one for my girlfriend… instant sex
As always, these are well made mugs that stand up to most anything. And they make perfect gifts (in this case for dirty-minded members of a wedding party). I’m extremely pleased.
Is a great mug that I purchased as a gag gift for a coworker. You know the one who also as interesting words/phrases that only urban dictionary can explain. Great as a coffee mug and better as conversation piece!
👍
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