can you answer all of them please

27.9. What is selected ion monitoring when mass spectrometry detectors are used in GC? Answer: 27.10. Which GC detectors are used in odor and flavor components of foods, identification of water pollutants, medical diagnosis based on breath components, and studies of drug metabolites. Answer: 27.11. What are the hyphenated methods of GC? Answer: 27.12. What type of detector is used to separate the fractions of GC? Answer: 27.14. What are the desirable properties of stationary phase in gas-liquid chromatography except suitable k and a values? Answer: 27.16. Which stationary phase is used for GC analysis of hydrocarbons, polynuclear aromatics