Fig 2 : Continuous monitoring on a simulated stack gas containing combustion products along with some volatile organic compounds. In each case, injections were made every 2 min at points I₁, I₂ ....
(a) response using a 100 ul gas sampling vavle,
(b) response using an 8 ml sample loop,
(c) response using the SVM mode (three 100 ul valve injections followed by a microtrap pulse),
(d) response from the OLMT mode.