【Daily Question】June 4, 2016: +2 wealth for participation； +3 to 8 wealth for correct answers
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To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched to foster an active atmosphere for technical exchanges while also providing financial rewards to users. 【Daily Question】 (Single-choice question) When using gas chromatography to analyze a gas mixture containing O2, N2, CO, CH4, HCl, etc., which detector should be selected? A. FID B. TCD C. ECD D. FPD. Correct answer: B. Please reply with your answer; answering correctly earns you +2 points, while getting all answers right grants an additional +3 to +8 points. Those who provide a thorough analysis or explanation of the question and answers, or include detailed calculation processes, will receive extra points as a reward. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions.
When using gas chromatography to analyze gas mixtures such as O2, N2, CO, CH4, and HCl, the detector that should be selected is (B). A. FID B. TCD C. ECD D. FPD