Measurement Principles
    InlineOnlineAt-line

    UV/Vis Spectroscopy

    UV/Vis spectroscopy uses light in the ultraviolet and visible range to determine concentration, turbidity and organic substances.

    Installation Types

    Inline

    Sensor directly in the process stream — no sampling, continuous real-time measurement.

    Online

    Automatic sampling via bypass loop — short analysis times, close to the process.

    At-line

    Sample analysed next to the line — flexible location, manual or automatic sampling.

    Relevant Industries

    Pharma & Bioprocess

    Inline control of API synthesis using NIR spectroscopy

    Environmental Monitoring

    Continuous water body monitoring per EU Water Framework Directive

    Food & Agriculture

    NIR moisture, protein and fat determination on conveyor belts

    Standards & Regulations

    ISO 7027DIN EN 1484DIN 38404-3DIN 38405-D9

    FAQ

    Dusko Kadijevic | Publisher Analytic Journal | analyticjournal.com

    Written October 2026. All content formulated in our own words, created with AI assistance.