Media type: E-Article Title: Negative Chemical Ionization Mass Spectrometry Contributor: Dougherty, Ralph C. imprint: American Chemical Society (ACS), 1981 Published in: Analytical Chemistry Language: English DOI: 10.1021/ac00227a813 ISSN: 0003-2700; 1520-6882 Keywords: Analytical Chemistry Origination: Footnote: