In a gas chromatographic run, anthracene peak was eluted at 7.50 min. The adjusted retention time of anthracene was 6.90 min. From this data it follows that the column had this gas hold-up time. 30 s O 36 s 45 s
In a gas chromatographic run, anthracene peak was eluted at 7.50 min. The adjusted retention time of anthracene was 6.90 min. From this data it follows that the column had this gas hold-up time. 30 s O 36 s 45 s
Chapter15: Electrophoresis And Other Separation Methods
Section: Chapter Questions
Problem 5P
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Transcribed Image Text:Question 20
In a gas chromatographic run, anthracene peak was eluted at 7.50 min. The adjusted retention time
of anthracene was 6.90 min. From this data it follows that the column had this gas hold-up time.
O 30 s
O 36 s
45 s
O None of the above
Question 21
In GC, separation is achieved due to molecular level differential interactions of analytes with this
phase:
O Stationary phase
O Mobile phase
O Both mobile and stationary phases
O None of the above
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