Aston Labs

Detection and Quantification of BTX Traces

Electron Imact (EI) mass spectrum of (left) 600 pptr benzene (>LOD) and (right) 200 pptr toluene (LOD) in nitrogen obtained from MINI 10.5 MS equipped with preconcentration tube (Tenax TA)

Ion chronogram of benzene molecular ion - EI mass spectrum of 1.9 ppb benzene, RSD = 9%

Detection of C_nH_n-X Where X=H,N,O,S pr Cl

EI mass spectra of model compounds: 48 ppm dichloromethane, 9 ppm of naphthalene, 45 ppm acetonitrile, 24 ppm butanethiol, 50 ppm acetone, 45 ppm carbon disulfide air obtained using the Mini 10.5 MIMS