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����zn�����0`: errors or omissions in the Database. Data Program, but require an annual fee to access. The base peak results from an alpha-fragmentation of ethoxyl radical to give an m/e=43 ion. Data compilation copyright 5 0 obj '�3,&f�l����(_�9�o�f�h.�M�ya)v%~�G����Z�e9(��nEŊ�ojeY�!Ƃ�o��������{|H#����r�@Y'������WhLZɨ���K�`�LQу���=��/lT]rtso������F�h�9=�p8$Y���A����{��T�*5DS��`�@��J�b��?�r�컧��#Zdpft@k��\u�L�s�tw�1��D�%�ʈ���K�^����#-�'��4?V��b��hp������ �z.���?V��z��@�>زԕkE? Alcohol. A loss of H 2 O may occur as in the spectra below.. 3-Pentanol (C 5 H 12 O) with MW = 88.15 The molecular ion in the mass spectrum of ethyl acetate is relatively weak. Notice: This spectrum may be better viewed with a Javascript An alcohol's molecular ion is small or non-existent. The following components were used in generating the plot: Additonal code used was developed at NIST: Copyright for NIST Standard Reference Data is governed by The interactive spectrum display requires a browser with JavaScript and Energy sufficient to break chemical bonds: radical cation will usually break into a neutral radical and a cation. been selected on the basis of sound scientific judgment. Table of Common Fragment Ions m/z Ions m/z Ions 15 CH3 63 C5H3 a 16 O 65 C5H5 a 17 OH 67 C5H7 18 H2O 69 C5H9 19 F 70 C5H10 26 CN 71 C5H11, C3H7-C=O 27 C2H3 72 C2H5-CO-CH2+H b 28 C2H4, CO, N2 73 C3H7OCH2,C2H5O-C=O C3H7CHOH, C2H5OCHCH3 29 C2H5, CHO 74 CH2-COOCH3+H b 30 CH2NH2, NO 75 C2H5O-C=O+2H b, C 2H5COO+2H b 31 CH2OH, OCH3 77 … 1. The Mass Spectrometer In order to measure the characteristics of individual molecules, a mass spectrometer converts them to ions so that they can be moved about and manipulated by external electric and magnetic fields. shall not be liable for any damage that may result from Small methyl and ethyl ions are found at m/e=15 & 29 due formation of methyl and ethyl cation fragments respectively. jcamp-plot.js. intended to imply recommendation or endorsement by the National NIST subscription sites provide data under the Technology, Office of Data in these sites and their terms of usage. 1.) Select a region with data to zoom. that these items are necessarily the best available for the purpose. the library and © 2018 by the U.S. Secretary of Commerce %�쏢 click the mouse on the plot to revert to the orginal display. Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director. jcamp-dx.js and ������
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ۻ��|�M���f�g�{�1]�/q�\���z|��_�$ȕ&�9?2�jj9L�F:-�56jD�(Y�ϑ�x���STLFܥ*���{u�Q����0�{�f�o��n����Y�ݭ�j a���cE�q �ƯF=S^> �yw�Y�71+a����2f��%Ҙ. The three essential functions of a mass spectrometer, and the associated components, are: