The strength of InProcess Instruments lies in the individual support of their customers with a view to providing solutions for special tasks and measurement problems. The key application aspects of this measurement technology are online process gas analysis, quality control and special applications for coupling with other analysis methods such as e.g. elementary analysis and thermal gravimetric analysis. Due to the wide variety of application options and fields mass spectrometry is today used in very different branches of industry, laboratories and research in process control and engineering, quality assurance and environmental protection. The universality of the measurement principle, high selectivity, multi-component capability, short measurement times, very high sensitivity and a wide measuring range dynamic are the key factors here. The resulting advantage is the simultaneous and in parallel determination of main components (up to 100%) and secondary components (down to sub-ppm components). Rapid, specific and quantitative results signify safety, efficiency and guarantee of quality.