摘要:The gas chromatographic analyses of 11 local anesthetics, meprylcaine, hexylcaine, anesthesin, procaine, tutocaine, cornecaine, tetracaine, lidocaine, carbocaine, dibucaine, and cocaine, in the form of free bases, are described. Microgram samples, in ethanol solvent, are subjected to separation in the argon gas chromatography with a column containing 1 % SE-30, 1 % Fs-1265 or Thermol-Q as the stationary phase. The best separation was generally obtained by using the column of Thermol-Q.