The Effect of Internal Tetramethylsilane Reference in Determination of $^{13}C$ NMR Chemical Shifts

$^{13}C$ NMR 화학 Shift 측정에 미치는 TMS의 거동

A method is presented for calculating the $^{13}C$ chemical shifts produced in liquid solution by referenced relative to RF frequency. The method is useful to get the real variations of chemical shifts in magnetic field by eliminating the affects of the variation of a reference substance.