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  2. Sample preparation in mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Sample_preparation_in_mass...

    [4] [5] Mass spectrometry ionization techniques requiring the sample to be in the gas phase have similar concerns. Electron ionization (EI) in mass spectrometry requires samples that are small molecules, volatile, and thermally stable, similar to that of gas chromatography. This ensures that as long as GC is performed on the sample before ...

  3. Fourier-transform ion cyclotron resonance - Wikipedia

    en.wikipedia.org/wiki/Fourier-transform_ion...

    Fourier-transform ion cyclotron resonance (FTICR) mass spectrometry is a high-resolution technique that can be used to determine masses with high accuracy. Many applications of FTICR-MS use this mass accuracy to help determine the composition of molecules based on accurate mass. This is possible due to the mass defect of the elements.

  4. Mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Mass_spectrometry

    Mass spectrometry can measure molar mass, molecular structure, and sample purity. Each of these questions requires a different experimental procedure; therefore, adequate definition of the experimental goal is a prerequisite for collecting the proper data and successfully interpreting it.

  5. DNA sequencing - Wikipedia

    en.wikipedia.org/wiki/DNA_sequencing

    1 to 2 weeks: $60–130: Low cost per base. Slower than other methods. Has issues sequencing palindromic sequences. [109] Nanopore Sequencing: Dependent on library preparation, not the device, so user chooses read length (up to 2,272,580 bp reported [110]). ~92–97% single read: dependent on read length selected by user: data streamed in real ...

  6. List of mass spectrometry software - Wikipedia

    en.wikipedia.org/wiki/List_of_mass_spectrometry...

    Laboratory information management software for mass spectrometry information management and data analysis. OpenChrom: Open source: Chromatography and mass spectrometry software that can be extended using plug-ins and can run on several operating systems (Microsoft Windows, Linux, Unix, Mac OS X) and processor architectures (x86, x86_64, ppc).

  7. Shotgun proteomics - Wikipedia

    en.wikipedia.org/wiki/Shotgun_proteomics

    The charged fragments are separated in the second stage of tandem mass spectrometry. The "fingerprint" of each peptide's fragmentation mass spectrum is used to identify the protein from which they derive by searching against a sequence database with commercially available software (e.g. Sequest or Mascot ). [ 9 ]

  8. Mass spectrometry data format - Wikipedia

    en.wikipedia.org/wiki/Mass_spectrometry_data_format

    The Analytical Data Interchange Format for Mass Spectrometry is a format for exchanging data. Many mass spectrometry software packages can read or write ANDI files. ANDI is specified in the ASTM E1947 Standard. [4] ANDI is based on netCDF which is a software tool library for writing and reading data files.

  9. Quantitative proteomics - Wikipedia

    en.wikipedia.org/wiki/Quantitative_proteomics

    The concentration of a certain protein in a sample may be determined using spectrophotometric procedures. [5] The concentration of a protein can be determined by measuring the OD at 280 nm on a spectrophotometer, which can be used with a standard curve assay to quantify the presence of tryptophan, tyrosine, and phenylalanine. [6]