| Camphor in the air was determined by gas chromatograph of capillary column with hydrogen flame ionization detector, using silica gel as adsorbent, and desorbed by mixed solvent ［V(methanol)∶V(acetone)=90∶10］. Results of the method showed that good linearity was obtained in range from 0.544 mg/L to 109 mg/L, detection limit 0.06 mg/L, the lowest detection concentration 0.003 mg/m3 at sampling 20 liters air, RSD of standard solution≤3.8%, spiked recovery of blank from 95.4% to 101%. |
