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Which of the following statements is false? * O Chromatographic analysis is independent of film thickness Thick films are used with highly volatile analytes because such films retain solutes for a longer time, thus providing a greater time for separation to take place. Thin films are useful for separating species of low volatility in a reasonable length of time. Which of the following is true about a chromatogram? * The signal is plotted as a function of time or volume of the added mobile phase The position of the peak can be used to quantitatively identify the components of the sample The area under the peak provides qualitative measure of the amount of each component The following are characteristics of an ideal GC detector except-* O A temperature range from room temperature to at least 400°C. A long response time independent of flow rate. Adequate sensitivity

Which of the following statements is false? * O Chromatographic analysis is independent of film thickness Thick films are used with highly volatile analytes because such films retain solutes for a longer time, thus providing a greater time for separation to take place. Thin films are useful for separating species of low volatility in a reasonable length of time. Which of the following is true about a chromatogram? * The signal is plotted as a function of time or volume of the added mobile phase The position of the peak can be used to quantitatively identify the components of the sample The area under the peak provides qualitative measure of the amount of each component The following are characteristics of an ideal GC detector except-* O A temperature range from room temperature to at least 400°C. A long response time independent of flow rate. Adequate sensitivity

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 62RGQ: You set out to determine the density of lead in the laboratory. Using a top loading balance to...
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Which of the following statements is false? * Chromatographic analysis is independent of film thickness Thick films are used with highly volatile analytes because such films retain solutes for a longer time, thus providing a greater time for separation to take place. Thin films are useful for separating species of low volatility in a reasonable length of time. Which of the following is true about a chromatogram? * The signal is plotted as a function of time or volume of the added mobile phase The position of the peak can be used to quantitatively identify the components of the sample The area under the peak provides qualitative measure of the amount of each component The following are characteristics of an ideal GC detector except-* A temperature range from room temperature to at least 400°C. A long response time independent of flow rate. Adequate sensitivity
Transcribed Image Text:Which of the following statements is false? * Chromatographic analysis is independent of film thickness Thick films are used with highly volatile analytes because such films retain solutes for a longer time, thus providing a greater time for separation to take place. Thin films are useful for separating species of low volatility in a reasonable length of time. Which of the following is true about a chromatogram? * The signal is plotted as a function of time or volume of the added mobile phase The position of the peak can be used to quantitatively identify the components of the sample The area under the peak provides qualitative measure of the amount of each component The following are characteristics of an ideal GC detector except-* A temperature range from room temperature to at least 400°C. A long response time independent of flow rate. Adequate sensitivity
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