Nitrogen Monitoring News

  • New ASTM method simplifies determination of Kjeldahl nitrogen

    The ASTM recently published method D8001 describing the determination of total nitrogen, total Kjeldahl nitrogen, and total phosphorous. The new method applies persulfate digestion with subsequent determination of Kjeldahl nitrogen by ion chromatography; no prior distillation of the matrix is required. Total Kjeldahl and total nitrogen are commonly determined by titration after ...


    By Metrohm AG

  • Historic England use our Golden Gate to carbon date bone

    Select Science recently ran a story featuring our Golden Gate ATR accessory. Historic England, formerly English Heritage, were prescreening collagen content in archaeological bone samples at Oxford University. Radiocarbon dating of bone samples depends on the integrity of bone collagen, the substance ...


    By Specac Limited

  • Combined COD/TOC/TNb/TP measurement in one unit

    The latest innovation from LAR Process Analysers AG QuickTOCNP is setting new standards worldwide for online analysers, by combining COD, TOC, TNb and TP measurements in just one unit. Besides analytical accuracy the main focus was here especially on easy operation and low operation costs. The analytical part of the TOC and TNb measurement is a closed system and consists of the established ...


    By LAR Process Analysers AG

  • Shimadzu Releases Total Nitrogen/Total Phosphorus Online Analyzers

    Shimadzu’s TNPC-4110 Series online analyzers are capable of measuring Total Nitrogen (TN) and Total Phosphorus (TP) in water. Easy-to-handle and simple-to-maintain, the TNPC-4110 analyzers are intended for use as automatic water analyzers for the water quality regulations currently being prepared for implementation governing TN and TP. These nutrients are monitored as indicators of the harmful ...

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