by HLFJ1112222 May 13, 2018
Get the spec headmug. -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.
-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.
-Its not mass spectroscopy… its mass spectrometry… there is a difference…
-Mass spec is a great tool for all of science.
-Mass spec is a great tool for all of science.
by ChemBen September 6, 2005
Get the mass specmug. A term used for describing your computer's specs. Sounds kind of like 'high tech' but it means high in specifications, such as numbers or hardware ranking.
Variable usage:
Low Spec
Mid Spec
High Spec
Variable usage:
Low Spec
Mid Spec
High Spec
by zeeteegee December 31, 2010
Get the High specmug. The act of attempting to adjust or move prescription glasses from your face after wearing them for a period of time and then switching to contacts.
"Man, I just cannot get used to these new contacts. I keep trying to move my "glasses" up on my face and then realizing they're not there."
"Sounds like you have a case of the phantom specs."
"Sounds like you have a case of the phantom specs."
by hansonpaulsey January 27, 2010
Get the phantom specsmug. A person who is not "in-the-know" or lacks knowledge about the technical specifications (specs) of any particular electronic device or computer programming.
Wally: Say I just bought that Samsung Blu-ray player for $399, it's the cheapset I've seen so far.
Chuck: Your such a "spec-turd" Wally, that Sammy lacks the latest interactive features and is not technically up to spec. Why do you think it went on sale for? They want to get rid of them.
Chuck: Your such a "spec-turd" Wally, that Sammy lacks the latest interactive features and is not technically up to spec. Why do you think it went on sale for? They want to get rid of them.
by Big Gabe January 4, 2008
Get the spec-turdmug. Nissan Sentra SER Spec V also known as a Nissan Sentra Special Edition Type Race Specification Victory, or for you mad tite JDM folks:
Nissan Sentra Special Edition Type Race Specification GOOOOOOO!!!
btw:(V=5=GO(5 in japanese).
Nissan Sentra Special Edition Type Race Specification GOOOOOOO!!!
btw:(V=5=GO(5 in japanese).
by Sinsation October 13, 2007
Get the spec vmug. by Akhil and Anna May 31, 2003
Get the mass specmug.