摘要
分析了适用于测定样本非线性化学指纹图谱的热力学体系和动力学模型,结果表明,在远离平衡的封闭体系和无耗散物补充的敞开体系中,阻尼非线性化学反应对样本化学成分的群集表征和整体含量分析具有重要作用.以丙酮和葡萄糖等为耗散物的阻尼B-Z振荡非线性化学反应为例,研究了反应物种及其浓度、电极类型、温度、搅拌速率、样本种类及用量等影响非线性化学指纹图谱的因素,并对指纹图谱中样本化学成分的定量信息、指纹图谱的特点和应用等进行了研究.成功提出了用于鉴别和评价样本的非线性化学指纹图谱的检测条件和方法.
The thermodynamic systems and dynamic model suitable for determining the nonlinear chemistry fingerprints were analyzed. The results indicated that the nonlinear chemical reactions in close systems away from the equilibrium and open systems without the complementarity of the dissipative substances had important significance for the throng characterization and total content analysis of the chemical components in samples. Various factors influencing on the nonlinear chemistry fingerprint, such as reactant species and their concentrations, electrode types, temperature, stir rate, the kind, dosage and granularity of samples, etc. were amply researched by a nonlinear chemistry reaction, namely, B-Z oscillation which used acetone and glucose as main dissipative substances. In addition, the quantitative information on the whole of chemical components in samples were investigated. The method and its important conditions for determining the nonlinear chemistry fingerprint used in distinguishing and evaluating complex samples were successfully put forward.
出处
《中国科学：化学》
CAS
CSCD
北大核心
2011年第9期1521-1539,共19页
SCIENTIA SINICA Chimica
基金
国家科技部政策引导类计划(2009GJD20033)和国家科技部国际科技合作项目(2007DFA40680)资助
关键词
非线性化学指纹图谱
样本耗散成分
检测方法
条件
真伪鉴别
质量评价
样本
nonlinear chemistry fingerprint, sample dissipation component, determination method, condition, authenticity identification, quality evaluation, sample
