If I am testing the same solutions with a titration and a spectrometer, would the spectrometer show to be more?
there is a really accurate equation that goes with spectrometry; its called beer's law: A=abc Molar absorbivity=wavelength constant * cell length * concentration. A spectrometer would be more accurate, because you don't really have any limitations like titrations do. IN titrations you need to now the concentration of the titrant and therefore is a limitation. Also, there is much room for error in titrations, while a spectrometer has one source of error: getting contaminants on the surface of the cell.
Organic Chemistry Mass Spectrometry Question?
The mass spectrum of an organic compound shows the relative abundances of M to be 54.28% and M+1 to be 14.09%. Assuming the peaks are caused by carbon-12 and carbon-13 isotopes, determine the number of carbon atoms in the compound. Natural abundances: 12C is 98.93% and 13C is 1.07%. Determine the number of carbon atoms.
Help! Chemistry! mass spectrometry question?
some vaporized madnesioum is intoduced into a mass spectrometer. one of the ions that reaches the detector is 25^Mg+. The 25^Mg2+ ion is also detected in the mass sptmtr. by changing the magnetic field. Deduce and explain with refernce to the m/z values of these two ions of magnesium, which of the ions is detected using a stronger magnetic field. the answer is 25^mg+ but i though it shoud be the 2+ ion as it will be deflected more...
Is there a mass spectrometry for dummies?
There isn't a Dummies guide per se, but if you are doing biological work, including small molecules, whole proteins, or shotgun proteomics, there is a good handbook. Its by Ben Orsburn and is called "The Handbook of MS for Biologists and MTs'. Its on Amazon, at this link: http://www.amazon.com/Handbook-spectrometry-biologists-medical-technologists/dp/0615434983/ref=sr_1_14?ie=UTF8&qid=1297371030&sr=8-14 Its relatively jargon free, has a nice glossary of terms, and walks you through how to calibrate and tune your machine as well as how to design a method. Best of all, its about $30.
Mass Spectrometry Help (Chem)?
I need help with this one question and when done, please explain so i can understand. If an atom of germanium-70 lost two electrons to become a doubly charged ion, at what m/z would it appear? extra info (maybe for other questions or this) germanium contains 20% germ. -70, 27% germ. - 71, 8% germ-72, 37% germ-73 and 8% germ-74
Which book is best for spectroscopy?
Spectrometric identification of organic compounds - Silverstein, Webster is a good book and covers all that is needed up to undergraduate years but it does have some errors in the 2D NMR section.Spectroscopy books by Atta ur Rahman are as best as they can get.But to really master spectroscopy one needs to solve as many problems as possible. For problems try:Organic Structures from Spectra, by L. D. Field, S. Sternhell, J. R. Kalman.Spectroscopy by Samuel Delvin2D NMR-Based Organic Spectroscopy Problems by Huggins and Gurst.
How do you gain experience in Mass Spectrometry, HPLC, and LC/GC without going to graduate school directly after undergrad?
You could get that work experience in a pharmaceutical company. But it's going to be a lot easier to secure such a job by first completing a Master's degree. There are lots of 12 months full time MSc‘s in Instrumental Analytical Chemistry in the UK. Those courses tend to cover all of the main stream techniques of Instrumental Analytical Science including HPLC Method Development. It could take you years to pick up those skills in industry if you don't know the basics. The basics are covered in an MSc course. Then in a job they will train you up to become an expert; knowing you have grasped the basics by completing a Master's degree.The various techniques covered in an MSc course are covered in textbooks such as “ Instrumental Analysis”, by Skoog. Once you have mastered that book and can answer the questions at the end of each chapter including the numerical questions you could then start reading specialist hplc textbooks.On the MSc Analytical Science course I completed ( in the early 1990s ); we also studied Statistics and Sampling ( including ANOVA, Simplex optimization, pattern recognition, supervised & unsupervised learning methods ), bioanalytical chemistry, robotics, and PC interfacing for instrument control, ( a practical computer programming clsss involving use of stepper motors ). Some courses cover topics such as Information theory, & Digital Signal Processing. You need to be good at maths for DSP. The Data Science side of Analytical Science is very mathematical as well. Machine Learning/Artificial intelligence stuff. Master's degrees in Analytical Science in the UK are available as 2 year part time courses as well.