|Mass spectrometry is a Bio analytical technique that produces spectra (singular spectrum) of the lots of the atoms or molecules comprising a sample of fabric. The spectra determine the isotopic signature or elemental of a sample, the lots of particles and of molecules, and to elucidate the chemical structures of molecules, like peptides and different chemical compounds. Mass spectrometry Scholarly journal is a peer-reviewed journal in which scholarship relating to a particular academic discipline is published. Scholarly journals serve as forums for the introduction and presentation for scrutiny of new research, and the critique of existing research. Content typically takes the form of articles presenting original research, review articles, and book reviews. The term Scholarly journal applies to scholarly publications in all fields; this article discusses the aspects common to all academic field journals.