指纹图谱技术检测NO_3~-含量的研究
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摘要
近年来化学振荡作为一种典型的非线性非平衡现象,引起了广大科研工作者的关注和研究。本文主要研究了利用硫酸-丙二酸-硫酸铈铵-溴酸钠化学振荡体系的特征参数测定水中NO_3~-的浓度。通过正交实验得出最佳实验条件:温度40℃、硫酸(1.0mol/L):25ml、丙二酸(1.25mo/L):8ml、硫酸铈铵(0.1mol/L):2ml、溴酸钠(0.8mol/L):3ml。
As a typical non-linear and non-equilibrium phenomenon, chemical oscillation has attracted much attention and research by the vast number of scientific researchers in recent years. In this paper, the determination of NO_3~-content in water by using the characteristic parameters of sulfuric acid-malonic acid-ceric ammonium sulfate-sodium bromate chemical oscillation system was studied. The optimum experimental conditions were obtained by orthogonal experiment: temperature 40℃, sulfuric acid(1.0 mol/L): 25 ml, malonic acid(1.25 mo/L): 8 ml, ammonium ceric sulfate(0.1 mol/L): 2 ml, sodium bromide(0.8 mol/L): 3 ml.
As a typical non-linear and non-equilibrium phenomenon, chemical oscillation has attracted much attention and research by the vast number of scientific researchers in recent years. In this paper, the determination of NO_3~-content in water by using the characteristic parameters of sulfuric acid-malonic acid-ceric ammonium sulfate-sodium bromate chemical oscillation system was studied. The optimum experimental conditions were obtained by orthogonal experiment: temperature 40℃, sulfuric acid(1.0 mol/L): 25 ml, malonic acid(1.25 mo/L): 8 ml, ammonium ceric sulfate(0.1 mol/L): 2 ml, sodium bromide(0.8 mol/L): 3 ml.
引文
[1]张泰铭,赵哲,方宣启,乔君喜,向凤琴,朱蓉,梁逸曾,丁峰.利用样本成分耗散物的非线性化学指纹图谱的检测方法、条件、特点和应用[J].中国科学:化学,2011,09:1521-1539.