1- To purify the mobile phase gas in GC we commonly use: a) IEC b) adsorption c) partition d) traps 2- In capillary columns the stationary phase is: (a) packed in the capillary. (b) coated inside the capillary. (d) isocratic liquid (c) gradient liquid. 3- The strongest functional group in anionic ion exchange chromatography is: a) carboxylic acid group b) sulphonic acid group d) quaternary amine c) primary amine 4- In gas chromatography, the best detector for quantification and identification of organic compounds is a) Elourescence b) UV-Vis c) Diode-array d) Mass-spectrometer 5- deionization of water from anions and cations in the industrial field can be carried by: a) SEC b) HPLC c) IEC d) recrystallization 6- is used for low concentration samples injection in GC. a) injection mode b) spilit mode c) spilitless mode d) reverse phase mode 7- The most common carrier gases in GC are a) Ne. H₂. He b) H2, CH4. Ne c) N₂. He. Ar. d) He. N₂. Xe
1- To purify the mobile phase gas in GC we commonly use: a) IEC b) adsorption c) partition d) traps 2- In capillary columns the stationary phase is: (a) packed in the capillary. (b) coated inside the capillary. (d) isocratic liquid (c) gradient liquid. 3- The strongest functional group in anionic ion exchange chromatography is: a) carboxylic acid group b) sulphonic acid group d) quaternary amine c) primary amine 4- In gas chromatography, the best detector for quantification and identification of organic compounds is a) Elourescence b) UV-Vis c) Diode-array d) Mass-spectrometer 5- deionization of water from anions and cations in the industrial field can be carried by: a) SEC b) HPLC c) IEC d) recrystallization 6- is used for low concentration samples injection in GC. a) injection mode b) spilit mode c) spilitless mode d) reverse phase mode 7- The most common carrier gases in GC are a) Ne. H₂. He b) H2, CH4. Ne c) N₂. He. Ar. d) He. N₂. Xe
Chapter88: Column Chromatography
Section: Chapter Questions
Problem 5P
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