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Science 13 July 1979:
Vol. 205. no. 4402, pp. 151 - 159
DOI: 10.1126/science.205.4402.151
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Articles

Molecular Analysis by Mass Spectrometry

Woodfin V. Ligon Jr. 1

1 Director of the Mass Spectrometry Section, General Electric Company, Corporate Research and Development, Schenectady, New York 12301

New ionization methods combined with powerful analyzers, detectors, and data systems have made mass spectrometry a versatile tool for molecular analysis. Samples consisting of nanogram quantities of hundreds of unique components are routinely analyzed. In favorable cases samples as small as 2.5 x 10–14 gram and samples with masses of more than 3000 atomic mass units have been successfully examined.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)