TECHNIQUE: THERMAL DESORPTION, GAS CHROMATOGRAPHY, MASS SPECTROMETRY
ANALYTE: See Table 1
DESORPTION: Thermal desorption
INJECTION VOLUME: Defined by desorption split flows
TEMPERATURE-DESORPTION: 300 C for 10 min.
DETECTOR (MS): 280 C
COLUMN: 35 C for 4 min; 8 C/min
CARRIER GAS: Helium
COLUMN: 30 meter DB-1, 0.25-mm ID, 1.0-µm
film, or equivalent
CALIBRATION: Identification based on mass spectra
interpretation and computerized library
searches.
RANGE: not applicable
ESTIMATED LOD: 100 ng per tube or less
PRECISION ( r
): not applicable