Which of the following statement(s) is/are False? I- In gradient elution, the composition of the mobile...
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Which of the following statement(s) is/are False? I- In gradient elution, the composition of the mobile phase kept constant. Il- In Isocratic elution, the composition of the mobile phase is changed continuously or in a series of steps. II- HPLC can accommodate to nonvolatile and thermally unstable compounds. Select one: O a. only III O b. Il and II O c. only I O d. only II e. 1,ll and III O f.l and II O g.I and II Which of the following statement(s) is/are False? I- In gradient elution, the composition of the mobile phase kept constant. Il- In Isocratic elution, the composition of the mobile phase is changed continuously or in a series of steps. II- HPLC can accommodate to nonvolatile and thermally unstable compounds. Select one: O a. only III O b. Il and II O c. only I O d. only II e. 1,ll and III O f.l and II O g.I and II
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