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Fast stereoselective reactions in electrosprayed Co(II)/neurotransmitter nanodroplets.

Chemical communications (Cambridge, England) (2008-05-29)
Caterina Fraschetti, Massimiliano Aschi, Antonello Filippi, Anna Giardini, Maurizio Speranza
ABSTRACT

Collision induced dissociation (CID) of the m/z 479 ion, formed by ESI of Co(NO3)2-CH3OH solutions with either pure (1S,2S)-(+)-N-methylpseudoephedrine or its mixtures with (1S,2R)-(+)- or (1R,2S)-(-)-ephedrine, provides compelling evidence for fast, stereoselective reactions in Co(II)/neurotrasmitter(s) aggregates during solvent evaporation of the ESI droplets.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
硝酸钴(II) 六水合物, ACS reagent, ≥98%
Sigma-Aldrich
硝酸钴(II) 六水合物, reagent grade, 98%
Sigma-Aldrich
硝酸钴(II) 六水合物, 99.999% trace metals basis
Sigma-Aldrich
硝酸钴(II) 六水合物, puriss. p.a., ACS reagent, Ni ≤0.001%, ≥99.0% (KT)
Sigma-Aldrich
(1R,2S)-(-)-N-甲基麻黄碱, 99%
Supelco
甲基麻黄碱标准液 溶液, 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®