四环素类药物残留检测技术取得突破

前不久，由深圳检验检疫局承担的国家“十五”食品安全重大专项“兽药残留检测技术研究”子课题“四环素类兽药多残留检测技术研究”项目通过了国家质检总局有关专家的鉴定。     

β—环糊精对Zn（Ⅱ）—p—OCH3TPPS4显色反应增敏作用的研究

系统研究了β－环糊精（β－ＣＤ）对Ｚｎ（Ⅱ）－四－（４－甲氧基－４－磺酸基苯基）卟啉（ｐ－ｏＣＨ３ＴＰＰＳ４）显色体系的增敏作用，提出了高灵敏度测定痕量锌的分光光度新方法。显色体系的表观摩尔吸光系数１．１７×１０６Ｌ·ｍｏｌ－１·ｃｍ－１。是目前以卟啉类试剂为显色剂分光光度法测Ｚｎ（Ⅱ）的灵敏度最高的方法。Ｚｎ（Ⅱ）的浓度在０～７μｇ／２５ｍＬ符合比尔定律。应用本方法测定人发、麦饭石等试样中锌，回收率在９４％～１０２％。     

超痕量检测技术“锁住”二恶英

在国家“十五”攻关重大专项和国家重大科技专项的支持下，由中国疾病预防控制中心营养与食品安全所完成的“二恶英，多氯联苯和氯丙醇的痕量与超痕量检测技术研究”，不仅使我国的二恶英、多氯联苯和氯丙醇的超痕量检测技术通过了国际质量分析考核，而且使我国首次以起草国身份参与国际食品法典委员会（CAC）有关二恶英控制等国际标准的起草和制定工作。代表国家分析水平的二恶英及相关超痕量检测技术的建立，     

自旋捕捉剂研究新进展

在对自旋捕捉技术发展简单回顾的基础上，着重评述近十年来自旋捕捉剂的合成，结构与性能关系以及自旋捕捉－＝ＥＳＲ技术应用的研究状况，并讨论了自旋捕捉剂的合成设计和发展前景。     

两项纺织品检测技术通过鉴定

2005年12月4日，中国检验检疫科学研究院在京主持召开了“纺织品中烷基酚聚氧乙烯醚的检测技术研究”鉴定会。该课题在国内首次建立了用于测定纺织品中烷基酚聚氧乙烯醚（APEOs）的高效液相色谱法与液相色谱-质谱联用法两种检测方法，这两种方法准确可靠、简便快速，总体技术达到了国际同类水平，适用于棉、麻、丝、毛、涤等多种纺织品中烷基酚聚氧乙烯醚的检测，为我国纺织品的进出口贸易提供了先进实用的检测技术手段。     

THERMAL PROPERTY, MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF POLY（3-HYDROXYBUTYRATE-co- 3-YDROXYHEXANOATE） AND POLY（BUTYLENE SUCCINATE-ADIPATE） （PHBHHX/PBSA） BLENDS

Blends of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) and poly(butylene succinate-adipate) (PBSA), both biodegradable semicrystalline polyesters, were prepared with the ratio of PHBHHx/PBSA ranging from 80/20 to 20/80 by melt mixing method. Differential scanning calorimetry (DSC), thermogravimetry analysis (TGA), dynamic mechanical thermal analysis (DMA), polarizing optical microscopy (POM) and wide angle X-ray diffractometer (WAXD) were used to study the miscibility and crystallization behavior of PHBHHx/PBSA blends. Experimental results indicate that PHBHHx is immiscible with PBSA as shown by the almost unchanged glass transition temperature and the biphasic melt.     

Cu(bpy)22+—Nafion聚合物膜修饰电极研究

在目前的聚合物膜修饰电极领域中引起人们极大的研究兴趣,这是因为用离子交换方法可将许多电化学或电催化活性的阳离子物种固定于Nafion膜中,构成具有离子导电功能和特定电化学性质的膜合物膜修饰电极。     

生物质裂解产物的制备及HPLC检测其成分的虚拟仿真实验开发

In order to improve university laboratory teaching and practical education under the background of information technology, as well as overcome the difficulty for practical training, develop a virtual simulation experiment platform for rapid pyrolysis of natal materials and high-performance liquid chromatographic (HPLC) detection of its components. The experiment integrates the actual operation process of the plant to produce cleaved products by rapid pyrolysis of biomass with HPLC detection. The virtual experiment is divided into biomass sample pretreatment, rapid biomass pyrolysis, bio-oil extraction, and HPLC determination of complex components, making the biomass cleavage workshop "real" through simulation. This virtual simulation experiment fully integrates the utilization of biomass resources and basic chemistry courses (such as organic chemistry, instrumental analysis, chemical engineering principles, etc.), which are widely involved in agricultural and forestry majors with advantageous characteristics value.