Question

Chemistry

A. STATIONARY PHASES AND INTEGRATIONS IN GC 1 Match a suitable stationary phase to the following analytes Heptane CH Heptanoic Acid CHO Gycerol сло. 09:01 2. List the types of interactions expected between the analyties and stationary phases selected above. 3. Which of the stationary phases above would be suitable specifically for GC-MS analysis? FFFFT AT 4. Which of these stationary phases is the least thermally stable?

Answer 1

phase for the otomatch a suitable stationary following analytes. Anst any analytes suitable stationary - phase. Tot ch37 sito-sit a 1 W and forsi IL heptane to-si L ciz T CM, ฯ CH3 *2) 13o- on heptanoic acid ty 9 30 OH~ Hofenacho- on Glycerol a list the type of interactions expected between the analytes and stationary phases Selected above. Ans o The principle behind the selection of stationary phase is like dissolves like wherever possible. 2) Match the polarity of the sete analyte to the stationary . phase Suitable stationary Type of interactions Expected Dispersive interoctions heptane leie. Van der Waals forces. and between mon polaz moieties to-sint Analyte: a in phase cui Phyl anizty of analyte molecule that is C-H bonds and non-polar polymeric backbone of Stationary Phone

analyle 22 Stational EN - stationary phases interaction (139 I dipole - dipole min 123, losit 1 En Jul x Jul and cha 4 dipole - incluced I dipole anteract nofenzene of Hydroge bonding interaction Chz Q: 3 Which of Stationary phases above would - be suitable for Gc=ms-analysis .. Ans7. f Phar phas ch.31 cena 7 gh chaly L dna 3) onfone cene of CV2 these three are best stationary phase for GC-ms analysis do most suitable is not inche of Q.4. which of these stationary phase is least thermally stable. | Arst below is least thermally stable 7 maximum Temperature A notenzone of is 250%.