Indira K. C. Silwal

  • Citations Per Year
Learn More
Water samples from a local water treatment plant were analyzed, using gas chromatography Fourier transform ion cyclotron resonance mass spectrometry (GC/FT-ICR MS), to identify potential disinfection byproducts (DBPs). Both liquid-liquid extraction (LLE) and solid-phase microextraction (SPME) techniques were used for sample preparation prior to GC/MS(More)
A long-standing controversy concerning the heat of formation of methylenimine has been addressed by means of the W2 (Weizmann-2) thermochemical approach. Our best calculated values, ∆H◦ f,298(CH2NH)=21.1±0.5 kcal/mol and ∆H◦ f,298(CH2NH + 2 )=179.4±0.5 kcal/mol, are in good agreement with the most recent measurements but carry a much smaller uncertainty. As(More)
We combine modern GC mass spectrometric techniques (GC/FT-ICR MS) and ab initio molecular orbital calculations at G2, G3, and MP2/6-31+G** levels for characterization of disinfection byproducts (DBPs) present in treated drinking water samples. We introduce an additional dimension to GC/MS analysis that utilizes theoretically calculated proton affinities(More)
  • 1