Which one of the following atomic spectroscopy method gives the smallest detection limit for ion Flame absorption b) electrothermal absorption c) flame emission d) ICP torch emission
What kinds of spectroscopy instruments currently employ Fourier transform for the most rapid acquisition of a spectrum UV-vis and NMR b) IR and NMR c) NMR and MS d) MS and UV-vis e) IR and AA
Which type of mass analyzer is used in the MS analysis of large molecules like proteins
True or false Using chemical ionization in mass spectrometry may produce such extensive fragmentation that there may be no peak representing the molecular ion on the spectrum True or false When an excited molecule fluoresces it emits light with a higher wavelength than the light it was excited with
1) Flame emission Spectroscopy method gives the smallest detection limit for ion than other spectroscopic method. 2) NMR & MS Spectroscopy instruments currently employ FT for the most rapid acquisition of a spectrum. 3) Electrospray ionization and matrix assisted laser desorption/ ionization (MALDI)these types of mass analyser are used in the MS analysis of large molecules like proteins.
4) False because it shows easily identifiable protonated molecular ion peak which allows easy determination of molecular mass
5)True excited molecule fluorces emits light with a higher wavelength than the light it was excited.
Which one of the following atomic spectroscopy method gives the smallest detection limit for ion Flame...
Which type of spectroscopy would be the best to measure the amount of red dye #40 in an aqueous sample Visible b) ultraviolet c) infrared d) atomic absorption e) atomic emission True or false Electron ionization mass spectrometry will allow you to differentiate structural isomers of the same molar mass Which one of the following atomic spectroscopy method gives the smallest detection limit for ion Flame absorption b) electrothermal absorption c) flame emission d) ICP torch emission
Indicate which of the following statements about the electromagnetic spectrum and IR spectroscopy are true and which are false. In any cases where the statement is false, explain how or why the statement is false. Infrared (IR) light is in the gamma ray part of the electromagnetic spectrum. Electromagnetic radiation is characterized by its mass and force. UV-Vis spectra are normally scanned in the 4000-600 cm-1 region. The fingerprint region on an IR spectrum is the easiest to interpret. Stronger...