Which of the following is not true about using gas chromatography for measuring pollutants in air?
A. Pollutants react rapidly in the column
B. Pollutants may not be detected by the detectors
C. Special column and support materials are required
D. Pollutants may elude rapidly from the column
Answer:D
Which of the following is not true about using gas chromatography for measuring pollutants in air?
A. Pollutants react rapidly in the column B. Pollutants may not be detected by the detectors C. Special column and support materials are required D. Pollutants may elude rapidly from the column
Explanation: Most of the pollutants are extreme reactive materials. Hence, they may not pass through the column and appear at the detector.