We would like to invite you to participate in our testing phase. Polymer Factory has developed a state-of-the-art mass calibrant called SpheriCal® which allows users to calibrate their MS in just 5 minutes. It has been in the market for a couple of years and we constantly want to improve ourselves. As such, we are currently looking for potential users to test our product during their calibration routine and provide feedback to inform development of new products tailored to us