3.2. Selection of automatic headspace sampling condition
3.2.1. Selection of balance time
The effects of balance time on the volatilization rate of determined objection in the sample has been discussed in
this study. Under the condition of the enough equilibrium time, can make the target to the state of gas-liquid
equilibrium, and the sampling efficiency of headspace will achieve the best. Taking the balance time test to 5min,
15min, 20min, 25min, 30min, 35min respectively of the same concentration standard sample under the condition of
equilibrium temperature was 80