Which one of the following is not correct about UV-Vis spectroscopy of steroid enones? Select one: a. Extra double bond in betamethasone compared to hydrocortisone does not make difference in maximum absorbance b. Steroidal androgens and corticosteroids have modified benzene ring acting as a chromophore c. Qualitative identity tests of the betamethasone and hydrocortisone rely on the shape of the absorption band in chromotohprehic measurements d. Many steroids have the absorbance maxima of 240 nm
How does CID is achieved? Select one: a. By reacting ions formed in ESI with reagent and proton transfers b. By applying heat under stream of nitrogen c. By colliding accelerated ions formed in ESI with neutral gas d. By applying heat to the multiply charged ions e. By applying voltage to the charged needle By applying stages of vacuum prior to entering MS analyzers