1. and Application Note AN 228-16, Hewlett-Packard, Avondale, PA (1981).
2. GC Application Note No. 63, Varian Instruments, Palo Alto, CA (1981).
3. GC Application Note No. 56, Varian Instruments, Palo Alto, CA (1981).
4. GC Application Note No. 62, Varian Instruments, Palo Alto, CA (1981).
5. Identification of Basic Drugs in Urine by Dual Fused Silica Capillary Column GC