南通大学学报（自然科学版）2018，Vol.17Issue(3)：29-32,65,5.
两种不同消解方法测定近海沉积物氮磷含量的比较
Comparison Study of Two Different Digestion Methods in Determination of Nitrogen and Phosphorus Content in Off-Shore Sediments
摘要
Abstract
At the same time, the total nitrogen and total phosphorus in the off-shore sediments were simultaneously eliminated by two different methods of digestion, microwave digestion and high pressure digestion, and the results were compared. The results show that the relative standard deviation of total nitrogen in sample 1 and sample 2 were7.7％ and 7.4％ respectively, and those of total phosphorus were 3.9％ and 7.8％ under high pressure digestion; meanwhile the relative standard deviations of total nitrogen in sample 1 and sample 2 were respectively 9.4％ and 10.1％, and the standard deviations of total phosphorus were 6.9％ and 8.1％ under microwave digestion; the content of total phosphorus under the condition of two kinds of dispelling were similar (sample 1 total phosphorus content were 0.460 mg/kg and 0.454 mg/kg, sample 2 total phosphorus content were 0.449 mg/kg and 0.439 mg/kg), but total nitrogen content under the condition of high pressure digestion (sample 1 to 0.114 mg/kg, sample 2 was 0.122 mg/kg) were significantly higher than those of microwave digestion (sample 1 to 0.088 mg/kg, sample 2 was 0.092 mg/kg), and the relative standard deviation was less than that. Therefore, the high pressure digestion method is more precise than microwave digestion.关键词
沉积物/总氮/总磷/微波消解/高压消解Key words
sediment/total nitrogen/total phosphorus/microwave digestion/high pressure digestion分类
资源环境引用本文复制引用
黎慧,万夕和,沈辉,王李宝,史文军,乔毅..两种不同消解方法测定近海沉积物氮磷含量的比较[J].南通大学学报（自然科学版）,2018,17(3):29-32,65,5.基金项目
南通市应用基础研究 (MS12015076) （MS12015076）
江苏省渔业科技项目 (Y2017-20) （Y2017-20）
