A fast method to prepare water samples for 15_n analysis

摘要

automatic element analyser is often used to prepare organic matters for 15_n analyssis. It is seldom use to prepare water samples. Water samples are conventionally dealt with by Kjeldahl-Rittenberg technique. But it requires tedious and labor-intensive sample preparation. A Fast and reliable method is proposed in this paper to prepare water samples for 15_n analysis.