Request InfoHeraeus Noblelight GmbHHeraeus Noblelight GmbH's Fiber-Light miniature UV light source is a deuterium lamp that satisfies the requirements for UV spectroscopy in situ. Small UV spectroscopy instruments equipped with the light source, and small spectrometer and numerical evaluation techniques now allow on-site continuous water analysis for nitrates, nitrides, bisulphides or total nitrogen and phosphorous. 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