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Fully Automatic Kjeldahl Protein and Nitrogen Analyzer Labnics automatic Kjeldahl analyzer measures nitrogen and confirms protein using the Kjeldahl method for food, soil, and industrial uses. It has a range of 0.1 to 240 mg N, with a ≥ 99.5% recovery rate. Features include a visible titration cup, real-time monitoring, adjustable steam flow, and a temperature display.