Give a list of the major U.S. EPA methods for the GC-MS analysis of (a) VOCs and (B) SVOCs in…


Give a roll of the main U.S. EPA methods for the GC-MS analysis of (a) VOCs and (B) SVOCs in drinking impart, wastewater, and wastes.

Explain: Why NMR separation is increased after a while the increasing strength of the magnetic ground (B0)? Why 1H-NMR is over perceptive than 13C-NMR when an similar compute of nuclei is compared?