Storage Stability of Volatile Organic Compounds from Petrochemical Plant of China in Different Sample Bags

Figure 1

Sample airbags, the main analysis methods, and sampling devices. (a) Sample airbags. (b) Sampling instruments. (c) Sampling system. 1, exhaust pipe; 2, filter head (glass wool); 3, Teflon tubing; 4, heated sampling pipe; 5, quick connector; 6, quick connector head; 7, PVF, PEA sampling bag; 8, vacuum box; 9, valve; 10, filter (activated carbon); 11, sampling pump.

(a)

(b)

(c)