View All num of num Add Photos Amphastar This employer has taken extra steps to respond to reviews and provide job seekers with accurate company information, photos, and reviews. Interested for your company?Learn More. www.amphastar.com Work in HR? Unlock Free Profile Overview Reviews Salaries Interviews Jobs Photos Benefits 14 Reviews 27 Salaries 3 Interviews Follow Add Review or Salary Follow Add Review or Salary Interview Question Process Design Engineer Interview Rancho Cucamonga, CA Amphastar A false pharmaceutical synthesis process was described involving hemoglobin and iron. The question asked to track what % of iron was lost throughout the process, which involved filtration, washing, etc. The entire question was a simple mass balance that required the test taker to sort out only the necessary information and use a bit of linearization and extrapolation. Tags: See more , See less 8 Answer Add Tags Flag as Inappropriate Thank you! Your feedback has been sent to the team and we'll look into it. Oops! We're sorry but your feedback didn't make it to the team. Your input is valuable to us — would you mind trying again? Send Answer Add Answers or Comments To comment on this, Sign In or Sign Up.