A. Ishii et al., SENSITIVE DETECTION OF STRYCHNINE IN BIOLOGICAL SAMPLES BY GAS-CHROMATOGRAPHY WITH SURFACE-IONIZATION DETECTION, Journal of forensic sciences, 40(3), 1995, pp. 483-485
Strychnine was found measurable with high sensitivity by gas chromatog
raphy (GC) with surface ionization detection (SID) and using brucine a
s the internal standard. The calibration curve was linear in the range
of 62.5 to 1000 pg, on column. The detection limit of strychnine was
about 50 pg on column (2.5 ng/mL sample); the sensitivity was 70 times
higher than that reported by high-performance liquid chromatography.
A detailed procedure for extraction of strychnine from human whole blo
od and urine was established using Sep-Pak C-18 cartridges; the recove
ry of strychnine and brucine, which had been spiked in both body fluid
s, was about 90%.