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We describe direct analysis of self-assembled monolayers (SAMs) on copper surfaces by low temperature plasma (LTP) mass spectroscopy (MS). Two kinds of SAMs formed from n-dodecylmercaptan (NDM) and l-phenyl-5-mercaptotetrazole (PMTA) were prepared on copper by spontaneous chemisorption. With the LTP probe, desorption and ionization of the SAMs was easily achieved, and the ions produced were introduced...
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