LC-MS Analysis of Betamethasone Steroids in Wastewater

Please provide a quote for the analysis of the following steroids in wastewater: 1) To test for presence of 5 types of steroids using LCMS analysis a. Betamethasone [378-44-9] b. Betamethasone Valerate [2152-44-5] c. Betamethasone Dipropionate [5593-20-4] d. Betamethasone Sodium Phosphate [151-73-5] e. Betamethasone Acetate [987-24-6] 2) Sample matrix is water (but may contain trace amounts of volatile organic compounds or salts) 3) Detection limit for the steroids required to be 40ppb (w/v) or lower in the aqueous sample. And if it is possible, what will the turnaround be? We expect at least 2 samples, they are likely to arrive about 1 week apart each time. More samples may be requested as we are looking for when the steroids fall below detection limit.