Learning-Memory Function and Swimming Capability of Rat and Ergonomic Evaluation Under Hypoxic Condition

Effects of hypoxia on learning-memory function and swimming capability of rat were studied and the ergonomics under hypoxic condition was also evaluated from the biological point of view. Three modes of hypoxia were designed and plots of oxygen concentration versus time for each group in hypoxic environment were produced. Results showed that the effects of hypoxia on learning-memory function and swimming capability were related with the time and strength of hypoxia. It had nothing to do with the individual difference of rat models. 10% O2 long-term intermittent anamorphosis hypoxia could improve the swimming capability of rat model significantly. Stimulating with proper level of hypoxia, carbon dioxide could improve ergonomics in airtight hypoxia environment. Under hypoxia condition, from the ergonomic point of view, 6% O2 is the important threshold and might belong in critical region.     

金花葵籽油中不饱和脂肪酸的GC-MS测定

采用索氏提取法、石油醚浸泡法以及超声波提取法提取金花葵籽油,并对3种提取方法的含油率进行比较。利用GC-MS方法对金花葵籽油中不饱和脂肪酸的含量进行测定,并对气相的条件进行了优化。测定结果表明金花葵籽油含有亚油酸32.35%,油酸43.89%,棕榈油酸0.40%,不饱和脂肪酸占76.64%,含量较丰富。     

原子光谱法测定金花葵花瓣及种子中微量元素

金花葵微量元素的测定多采用原子光谱法,但因实验条件、样本预处理方法不一致,各测定方法间的重现性和可比性较差。采用原子吸收分光光度计测定微量元素铜、镁、铁、锰、铅、锌,采用原子荧光分光光度计测定微量元素硒。实验详细研究了微波消解与电热板消解法两种消解方法对含量测定的影响,对金花葵花瓣和种子中的微量元素含量进行了比较。结果表明微波消解法更有利于微量元素含量的测定,精密度与重现性更高。金花葵种子与花瓣相比,种子中的微量元素锌、镁、锰等含量均比花瓣中高,金花葵花瓣及种子中都含有微量元素硒,种子中的微量元素含量达0.063 5 mg/kg,花瓣中的含量为0.027 2 mg/kg。微量元素铅含量没有超标,金葵花种子的药用价值更高。     

基于气相色谱-质谱法的车辆驾驶室空气污染物检测

本文研究了车辆驾驶舱主要空气污染物的成份和来源。利用快速检测技术与色质联用技术,对汽车处于静止、行驶状态驾驶室及尾气处空气污染物成分进行了定性检测。结果显示,车辆在行驶或静止状态下,其驾驶舱内主要污染物以烷烃类、苯及其衍生物污染物为主。苯及其衍生物主要为燃油燃烧过程产物,在尾气中含量较高。无机类污染物以二氧化碳、一氧化碳、二氧化氮、一氧化二氮等无机气体为主。     

Separation of non-denatured proteins using semi-crosslinked polyacrylamide capillary gel electrophoresis

This work presents an approach to build a high-performance, low-viscous and replaceable separation matrix, semi-crosslinked polyacrylamide （semi-CPA） capillary gel electrophoresis. Non- denatured basic proteins, such as lysozyme, cytochrome C, ribonuclease A and trypsin were separa- ted. The impacts of monomer and cross-linker concentrations on protein separation were studied, and the ability of dynamic capillary inner wall coating was demonstrated. The UV absorption interfer- ence by semi-CPA gel matrix was successfully overcome by a partial filling technique, which results in sensitivity 20 times higher than other protein separation method. The excellent separation ability, reproducibility and dynamic coating ability made semi-CPA an ideal separation media in both capillar- y electrophoresis and microfluidic chip separation scheme.     

火场纤维残留物及其助燃剂的PGC分析

本文通过将不同种类的纤维以及加有助燃剂 (汽油、煤油、柴油 )的纤维模拟火场燃烧 ,待燃烧完毕后 ,收集燃烧残留物 ,进行PGC检测 ,通过分析所得的有关谱图 ,并比较助燃剂的相关谱图 ,发现加有助燃剂的纤维燃烧后的残留物中仍然留有少量助燃剂的有关组分 ,因此可以用此方法来检测火场助燃剂的存在     

聚氯乙烯电缆燃烧烟气中苯系物毒性分析

采用气相色谱仪对三种聚氯乙烯电缆在300、400、500、600、700、800、900℃下燃烧时产生的烟气中苯系物的毒性进行实验研究,测定苯系物含量,以公式法分析人在不同体力活动下的苯的致癌风险及苯系物的非致癌风险。研究结果表明,三种电缆燃烧烟气中苯系物排放总量ZR-RVVZR-YJVYJV;苯系物中只有苯在500℃以上时的排放浓度超过了国家标准,但400℃以上时苯的致癌风险超过可接受范围,同样400℃以上时(不包括400℃时的轻微体力活动)开始出现非致癌风险。     

单宁酸复合功能材料的制备及吸附性能研究进展

以合成制备单宁酸复合功能材料不同反应机理为分类依据,分别介绍氧化自聚合方法、非共价键共作用法、配位络合反应法、迈克尔加成方法、环氧开环方法、与多酚、醛、醇一系列衍生物发生交联反应法等6种方法制备合成单宁酸复合功能材料,并用于水中苯系物、工业染料或者抗生素吸附去除的研究进展,并对单宁酸及功能材料制备和应用发展前景进行了展望。