SECONDARY ELECTROSPRAY IONIZATION (SESI) DETECTION OF EXPLOSIVE VAPORS BELOW 0.02 PPT ON A TRIPLE QUADRUPOLE WITH AN ATMOSPHERIC PRESSURE SOURCE

摘要

Selective detection of samples containing TNT, HMX, DNT, RDX, PENT and NG. Detection limit, linearity and speed response of the API 5000 for detecting explosive vapors are determined. LDL found for ambient volatiles 50 times better than the best previously reported. Limited by background. Measured SESI Ionization probability of explosives is below 10~(-4).