Real-time detection of parts per trillion levels of chemical warfare agents in ambient air using atmospheric pressure ionization tandem quadrupole mass spectrometry von Ketkar, Suhas N, Penn, S. M, Fite, W. L

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Quantitative absorption spectroscopy of residual water vapor in high-purity gases: pressure broadening of the 1.39253-microm H2O transition by N2, HCl, HBr, Cl2, and O2 von Vorsa, Vasil, Dheandhanoo, Seksan, Ketkar, Suhas N, Hodges, Joseph T

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Atmospheric pressure sample inlet for mass spectrometers von Dheandhanoo, Seksan, Ciotti, Ralph J., Ketkar, Suhas N.

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Quantitative absorption spectroscopy of residual water vapor in high-purity gases: pressure broadening of the 139253-μm H_2O transition by N_2, HCl, HBr, Cl_2, and O_2 von Vorsa, Vasil, Dheandhanoo, Seksan, Ketkar, Suhas N., Hodges, Joseph T.

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Analysis of a reactive gas such as silane for particle generating impurities von MAROULIS PETER J, KETKAR SUHAS N, MCDERMOTT WAYNE T

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Analysis of a reactive gas such as silane for particle generating impurities von MAROULIS PETER J.,KETKAR SUHAS N.,MCDERMOTT WAYNET

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Collision cell for triple quadrupole tandem mass spectrometry von FITE, WADE L, KETKAR, SUHAS N

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Method of separating and detecting impurities using a fractional concentration detector von RIDGEWAY, ROBERT G, GOLDEN, TIMOTHY C, KETKAR, SUHAS N, MAROULIS, PETER J

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