Developed in conjunction with the ASTM, the “D8001 Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water and Waste Water by Ion Chromatography” allows users to concurrently monitor total nitrogen (organic nitrogen, ammonia, nitrate and nitrite) as nitrate and total phosphorus as orthophosphate in unfiltered water samples. “Thermo Fisher’s method provides a single, reliable instrumental method for the determination of the target analytes in water, in place of traditional multiple and complex wet chemical methods, with the opportunity for accumulative errors,” said Robert Joyce, chairman of the ASTM International Subcommittee D19.06. “We expect the method should deliver labor savings, as well as improved sensitivity and accuracy.” Currently, laboratories use two methods to determine total kjeldahl nitrogen (TKN) and total phosphate. The new test method can be incorporated into existing ion chromatography protocols with the addition of a…