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 Tee
This T shirt is the best piece of material to have ever graced this Earth. The fine quality fabrics and in depth definition, which is professionally implanted on the back of the shirt, which makes for some very interesting talking points. Thank you Pablo Parmesan.
Absolutely wonderful product! I bought this shirt for my son and he gagged with joy! Mariah Careystmas everyone!
I love it I bought me and my family some
Glad I had utmost FREEDOM OF SPEECH to express in articulate detail what evv it is the fk i was on a rant about that day. I haven't even received my shirt. I just a few moments ago placed the order. That is how pleased 😄 I am. Fk yeah fk yeah. Very empowering experience. My thoughts turned into type, that made some shi# happen. Having freedom of expression was most definitely...one fk ton of fun. A fk ton can be quantified as exuberance an joy beyond expectation. Fk yeah fk yeah. Awesome>>>
Proofread much? She might seem "quite"? Please fix the spelling to "quiet". Can't believe I was considering this purchase...
Damonism T-shirt :+) I found this by accident while surfing through your site. I love this shirt. I bought one and wear it when I feel frisky.
Another hit!
Great shirt, great service. A big thumbs up👍🏻
I always get so many compliments when I wear this (my favorite) shirt. I have been able to give out my phone number to lots of nice old men and my parents think it's great that I have so many nice mentors grooming me into a nice young boy who is willing to "follow the rules ".
Very comfortable and love the tyoeface
Very nice t-shirt. Fits perfect.
FUCK you urban dictionary.
My brother loved the shirt and the dogs name is cum stain
The small shirts for men looks like an extra small. Other than that I love the shirt.
AMAZING I GOT THE HILAARIOUS SHIRT AND LOVE IT MORE THAN ANYTHING!
I absolutely loveeeeeeee my shirt ! Fast shipping too !
hehe mine said skibidi
Feels great love the shitt
Great shirt. Great service. Shopify doesn’t track the shipment accurately though. However, when I reached out to Urban Dictionary customer service, they were able to help me.
Wore it to school.
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Size Guide
Measurements may vary by up to 2" (5 cm). Pro tip: Measure one of your t-shirts at home and compare!
A - Length
Measure from the top of the collar to the bottom hem
B - Width
Measure across the chest from armpit to armpit
Size Chart
| Size | Length | Width |
|---|---|---|
| XS | 27" | 16½" |
| S | 28" | 18" |
| M | 29" | 20" |
| L | 30" | 22" |
| XL | 31" | 24" |
| 2XL | 32" | 26" |
| 3XL | 33" | 28" |
| Size | Length | Width |
|---|---|---|
| XS | 69 cm | 42 cm |
| S | 71 cm | 46 cm |
| M | 74 cm | 51 cm |
| L | 76 cm | 56 cm |
| XL | 79 cm | 61 cm |
| 2XL | 81 cm | 66 cm |
| 3XL | 84 cm | 71 cm |