Trace Analysis in End-Exhaled Air Using Direct Solvent Extraction in Gas Sampling Tubes: Tetrachloroethene in Workers as an Example

<table>Sampling end-exhaled air with a gas sampling tube; mouthpiece screwed on; left hand: one of two sealing caps with septum; plastic net sleeve to protect glass.</table>

International Journal of Analytical Chemistry

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Figure 3

Figure 3: Trace Analysis in End-Exhaled Air Using Direct Solvent Extraction in Gas Sampling Tubes: Tetrachloroethene in Workers as an Example 