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- https://chem.libretexts.org/Courses/Oregon_Institute_of_Technology/OIT%3A_CHE_332_--_Organic_Chemistry_II_(Lund)/1%3A_Fall_term_review_sections/4%3A_Structure_Determination_I-_UV-Vis_and_Infrared_Spectroscopy_Mass_Spectrometry/4.2%3A_Mass_SpectrometryOur third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectr...Our third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectrometry (MS), we are interested in the mass - and therefore the molecular weight - of our compound of interest, and often the mass of fragments that are produced when the molecule is caused to break apart.
- https://chem.libretexts.org/Ancillary_Materials/Worksheets/Worksheets%3A_Analytical_Chemistry_II/GC-MS%3A_Performance_Enhancing_DrugsThe more atoms in the alkane, the greater the number of polarizable electrons, the greater the energy of interaction, consequently the higher the boiling point of the alkane. Ix is the Kovats retentio...The more atoms in the alkane, the greater the number of polarizable electrons, the greater the energy of interaction, consequently the higher the boiling point of the alkane. Ix is the Kovats retention index for the shorter of the two n-alkanes which bracket the analyte compound; the Kovats retention index number of n-alkanes is the number of carbons in the chain multiplied by one hundred (e.g.
- https://chem.libretexts.org/Courses/SUNY_Oneonta/Organic_Chemistry_with_a_Biological_Emphasis_(SUNY_Oneonta)/04%3A_Structure_Determination_I-_UV-Vis_and_Infrared_Spectroscopy_Mass_Spectrometry/4.03%3A_Mass_SpectrometryOur third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectr...Our third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectrometry (MS), we are interested in the mass - and therefore the molecular weight - of our compound of interest, and often the mass of fragments that are produced when the molecule is caused to break apart.
- https://chem.libretexts.org/Courses/Oregon_Institute_of_Technology/OIT%3A_CHE_331_-_Organic_Chemistry_(Lund)/08%3A_Intro_to_Spectroscopy_-_UV-Vis%2C_IR%2C_MS/8.02%3A_Mass_SpectrometryOur third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectr...Our third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectrometry (MS), we are interested in the mass - and therefore the molecular weight - of our compound of interest, and often the mass of fragments that are produced when the molecule is caused to break apart.
- https://chem.libretexts.org/Ancillary_Materials/Worksheets/Worksheets%3A_Analytical_Chemistry_II/Literature_Article_Analysis%3A_HPLC_vs._GC-MSToward the end of the introduction, often in the last paragraph, it is common to transition from background information to a brief summary of the specific question addressed in the manuscript. Check t...Toward the end of the introduction, often in the last paragraph, it is common to transition from background information to a brief summary of the specific question addressed in the manuscript. Check the boxes to indicate which pieces of information below are in the methods section, and be sure to note the level of detail. The authors state that “Overall, GC-MS demonstrated better precision than HPLC, but the methods had generally equivalent sensitivities.” Consider the data in Tables 1 and 2.
- https://chem.libretexts.org/Ancillary_Materials/Worksheets/Worksheets%3A_Analytical_Chemistry_II/Qualitative_and_Quantitative_Analysis_via_GC-MSWhat is the nominal (integer) molecular weight (M) of fluorobenzene in which the C, H, and F atoms are all in the form of the most common isotopes? The instructor will perform this data analysis and i...What is the nominal (integer) molecular weight (M) of fluorobenzene in which the C, H, and F atoms are all in the form of the most common isotopes? The instructor will perform this data analysis and in doing so will demonstrate how to open a data file, how to view the chromatogram and mass spectra corresponding to different peaks, how to perform library searching, and how to interpret the results.
- https://chem.libretexts.org/Courses/Oregon_Institute_of_Technology/OIT_(Lund)%3A_Organic_Chemistry_with_a_Biological_Emphasis_(Soderberg)/04%3A_Structure_Determination_I-_UV-Vis_and_Infrared_Spectroscopy_Mass_Spectrometry/4.02%3A_Mass_SpectrometryOur third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectr...Our third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectrometry (MS), we are interested in the mass - and therefore the molecular weight - of our compound of interest, and often the mass of fragments that are produced when the molecule is caused to break apart.
- https://chem.libretexts.org/Courses/Lafayette_College/CHEM_212_213%3A_Inorganic_Chemistry_(Nataro)/01%3A_Atoms/1.01%3A_Mass_SpectrometryAlong the way, different compounds in the sample stick to the walls of the column to different extents, and thus travel at different speeds and emerge separately from the end of the column. In GC-MS, ...Along the way, different compounds in the sample stick to the walls of the column to different extents, and thus travel at different speeds and emerge separately from the end of the column. In GC-MS, each purified compound is sent directly from the end of GC column into the MS instrument, so in the end we get a separate mass spectrum for each of the compounds in the original mixed sample.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Book%3A_Organic_Chemistry_with_a_Biological_Emphasis_v2.0_(Soderberg)/04%3A_Structure_Determination_I-_UV-Vis_and_Infrared_Spectroscopy_Mass_Spectrometry/4.03%3A_Mass_SpectrometryOur third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectr...Our third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectrometry (MS), we are interested in the mass - and therefore the molecular weight - of our compound of interest, and often the mass of fragments that are produced when the molecule is caused to break apart.
- https://chem.libretexts.org/Courses/Oregon_Institute_of_Technology/OIT%3A_CHE_333_-_Organic_Chemistry_III_(Lund)/New_Page/4%3A_Structure_Determination_I-_UV-Vis_and_Infrared_Spectroscopy_Mass_Spectrometry/4.2%3A_Mass_SpectrometryOur third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectr...Our third and final analytical technique for discussion in this chapter does not fall under the definition of spectroscopy, as it does not involve the absorbance of light by a molecule. In mass spectrometry (MS), we are interested in the mass - and therefore the molecular weight - of our compound of interest, and often the mass of fragments that are produced when the molecule is caused to break apart.
