The industry-standard API 4000 LC/MS/MS System brings high-performance quantitation and identification to every phase of the pharmaceutical development process, from discovery to clinical research trials. Proven Curtain Gas™ Interface technology, combined with improved gas dynamics, reduces maintenance and increases uptime. Enhanced, high-flow-rate performance, reduced ionization suppression, self-cleaning probe design, and reliable interface are combined to produce accelerated productivity and high throughput. Windows NT® platform-based Analyst® Software facilitates GLP compliance, including ability to support 21 CFR Part 11 compliance.