大学之心神:以心理学的思路看大学德育心理学论纲

实践德育基础是清晰的德育理路，育人之德应以知识为背景、以思想为对象，重视知识向思想的转换；关注心理、突显思想，以思想统摄心理；以活动为栽体，为德性素质构建态度与能力两大因素；观念与精神对育人具有本体性意义；意识形态特别是政治对育人有先导作用。德性的生成离不开理论与实践的融通。     

毛细管气相色谱法测定汾酒中乙酸乙酯的含量

本文采用内标法，以乙酸正丁酯为内标物，用气象色谱法在恒温条件下，采用毛细管色谱柱和氢火焰检测器，测定了不同批号汾酒中芳香成分乙酸乙酯的含量，并进行了对比。实验测得的乙酸乙酯回收率在８１．６％～１１５．２％之间，变异系数＜５％。证明该法可用于酒中芳香成分乙酸乙酯的测定。该法快速、简便，重复性好，适用于常规质量检测。     

专用型国产气相仪及DNP填充柱测定白酒中的主要香味组分

 采用微机控制的国产气相仪和自制的DNP填充柱测定了白酒中的主要香味组分。通过对各种操作参数的优化 ,确立了等温及程序升温时合适的条件。该方法除可测定十余种主要醇、酯、醛组分外 ,还将分析对象扩大至丙酮、异戊醛、2 戊酮、2 戊醇、3 羟基 2 丁酮等组分 ,从而使采用这一技术可准确测定的组分增至 1 8种。在选定的条件下 ,仪器具有良好的稳定性 ,各香味组分定量结果的重复性好。并对科技部组织研制的这一专用气相仪的适用性作了研讨。     

Fast GC analysis of major volatile compounds in distilled alcoholic beverages: Optimisation of injection and chromatographic conditions

The principal secondary flavour compounds in distilled spirits can be successfully quantified by split injection to a 0.15 mm internal diameter (I.D.) capillary column. Initial conditions for split ratio, gas velocity, initial oven temperature and oven ramp rate are given by method translation from a similar method on a standard 0.25 mm internal diameter column with the same phase. These parameters were then investigated in an experimental design comprising a series of experiments in which the responses were the resolution of two critical peak pairs, the analysis time and the limit of quantification (LOQ) of the eight major compounds. The LOQ is the concentration corresponding to a signal 10 times greater than the noise. The experiments were replicated at two different concentration levels, which encompassed the natural levels of the compounds of interest found in distilled spirits. From the chemometric evaluation of these data, a validated model was constructed, which allowed the prediction of conditions for optimum chromatographic analysis. Three additional concentration levels were then added to the model to establish linearity, repeatability and sensitivity. Modern gas chromatographic hardware allows the use of these narrow-bore capillary columns for routine use without operational difficulties. Major advantages are a substantial decrease in analysis time allowing high throughput processing of samples.     

毛细管柱直接进样法测定白酒香味组分的研究

直接注入白酒以准确测定微量香味组分含量是近年来研究白酒香味的首选技术,围绕所选的３种柱型,对色谱分离条件、气相色谱／质谱（ＧＣ／ＭＳ）定性及采用３个内标物的定量方法作了较详细的探讨,列出了可供定量的６８个组分名称,并对３种毛细管柱的应用特性作了比较。