of the detector was at 250 C (Micone and Guy, 2007).The TMA was analyzed using GC-NPD (Shimadzu, GC-14B, Japan)with a column whose flux was set to 2 mL min 1 and at 30 C for15 min for adsorption and 260 C for 3 min for desorption (Chienet al., 2000).Table 3 shows the relative standard error (RSE) and the minimumdetection limit (MDL) for quality assurance (QA) of theanalytical chemistry. With respect to instrumental precision, the RSE values were calculated based on five repeated analyses withr2 > 0.989 and the values were 0.25 (TMA) to 5.40 (NH3), and theMDL values described in Table 3 and all of the MDL values ofcompounds were lower than the emission standard value in Korea