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Mass Spectroscopy
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Mass Spectroscopy. Advanced. Chemical Ionization (CI). gas pereaksi. YH n. YH n +. YH n-1 + MH + + H 1 (CI positif). M. Y -. YH + [M – H ] - + H 2 (CI negatif). substrat. H positif (eksotermik). H 1 = PA (YH n-1 ) - PA (M).
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Mass Spectroscopy
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Mass Spectroscopy Advanced
Chemical Ionization (CI) gas pereaksi YHn YHn+ YHn-1 + MH+ + H1 (CI positif) M Y - YH + [M – H ]- + H2 (CI negatif) substrat H positif (eksotermik) H1 = PA (YHn-1) - PA (M) H2 = PA (M – H)- - PA (Y- )
Glicosteroid (MW 548) with ammonia as reagent CI DCI
Puncak2 matriks sehubungan dengan FAB (ion positif) * Campuran ditiotreitol dan ditioeritritol (5 : 1)
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