22-13. Dioctyl phthalate is a ubiquitous background substance in most labs because it is a plasti...
22-13. Dioctyl phthalate is a ubiquitous background substance in most labs because it is a plasticizer used in Tygon tubing. HDioctyl phthalate O(n-C^H17Nominal mass 390 817 C24H3 O4 (a) Suggest a structure for the base peak cation at m/z 149 and the second most abundant peak at m/z 279 observed by electron ionization (b) In negative chemical ionization with NH3 reagent gas, there is a prominent parent anion Mat m/z 390 and dominant fragment anions are observed at m/z 277 and 221. Suggest structures for these anions
22-13. Dioctyl phthalate is a ubiquitous background substance in most labs because it is a plasticizer used in Tygon tubing. HDioctyl phthalate O(n-C^H17Nominal mass 390 817 C24H3 O4 (a) Suggest a structure for the base peak cation at m/z 149 and the second most abundant peak at m/z 279 observed by electron ionization (b) In negative chemical ionization with NH3 reagent gas, there is a prominent parent anion Mat m/z 390 and dominant fragment anions are observed at m/z 277 and 221. Suggest structures for these anions