【Daily Question】November 09, 2016 – Participation +2 Wealth； +3 to +10 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 offering rewards in the form of financial benefits to users. 【Daily Question】 (Single-choice question) A gas chromatograph can be combined with instruments such as ( ) for qualitative analysis. A. Coulometer B. Ultraviolet spectrometer C. Mass spectrometer D. Atomic absorption spectrometer Correct answer: C. Post your answer in the replies; participating in the quiz earns you +2 wealth points. Getting all answers correct grants an additional +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions or answers, or include detailed calculation processes, will receive extra wealth points as a reward. If your answer is correct and your analysis/explanation is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions.
Mass spectrometry can be used for effective qualitative analysis, but it is ineffective for analyzing complex organic compounds； Chromatography is an effective separation and analysis method for organic compounds, particularly suitable for the quantitative analysis of such compounds, but qualitative analysis is relatively difficult. Therefore, the effective combination of these two enables efficient qualitative and quantitative analysis of organic compounds.