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
Best mug i have ever purchased! Subscribe
I love it, but of course the definition Ichose for “Unicorn” is too long and gets cut off after “someone is remarkably attractive.” Is there any way to purchase a second mug that has the rest of the quote on it? They’d make a great set as a present. Please let me know. David Tillinghast dtilling480@gmail.com
"Turtle on my name". A tribute to the 50 odd years of misheard lyrics.
My friend couldn’t stop laughing when I gave it to him!
I got mugged A man mugged me and then said I had da big gaye
I love the costume coffee mug. What can you say that's bad about it. It's your choice after all. It's the best mug and I love it😍😍😍😍❤️❤️❤️❤️
these mugs are amazing. I can't
My Power Bottom Queen loves her eggplant colored mug and I let her celebrate her title whenever she so chooses
I use black hobby paint & small brush to add recipient’s name to back of mug (which I requested be left blank - thank you!). This is a terrific gift for hard-to-buy-for slightly warped friends! BG
good mug but why does it sometimes say creepy things to me kinda sus ngl
up ya bum
Fast shipment Better than expected!
Customer service was very responsive and helpful
Wowzers
Every web purchase should be this easy! Love it!
Great quality, although a high price for a mug! Printed really nicely and came out really well. $30 worth the laugh.
High quality finish
I just love mugs
balls
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