依维菌素的高效液相色谱分析

采用高效液相色谱法分析依维菌素。使用C18反相柱和二极管阵列检测器，以甲醇-水（体积比82：18）为流动相，柱温30℃，流速：1．0mL／min；检测波长244nm，外标法对依维菌素的有效成分进行定量分析。结果表明依维菌素的线性关系系数为0．9998，测定0．5％依维菌素乳油时，标准偏差为0．0089，变异系数为1．73％，平均回收率为100．14％；测定依维菌素原药时，标准偏差为0．10，变异系数为0．11％，平均回收率为99．88％。     

硫丹原药的气相色谱分析

论述了采用毛细管柱为分离柱，邻苯二甲酸二丁酯为内标物和FID检测器，对硫丹原药进行定量分析的方法。本方法标准偏差为0．15，变异系数为0．16％，回收率在99．0％～101．5％之间，平均回收率为100．7％，线性相关系数为0．9998。     

苯甲酰甲酸甲酯气相色谱法的分析研究

用5％OV－17，长度为2m的不锈钢填充柱，以邻氯硝基苯为内标物，在150℃柱温下，用FID检测器对苯甲酰甲酸甲酯进行定量分析。该方法变异系数为0．21％，平均回收率100．22％，线性相关系数为0．99995。     

乳氟禾草灵的正相液相色谱分析

采用高效液相色谱法，使用硅胶柱和紫外检测器，用外标法对乳氟禾草灵进行定量分析。方法标准偏差为0．310％，变异系数为0．407％，回收率为98．6％-100％。     

3-溴-4-氟苯甲醛的气相色谱分析方法

采用气相色谱法，氢火焰离子化检测器，选用3％OV-17填充柱，正十三烷为内标，气化室和检测器温度为180℃，柱温120℃，对3-溴-4-氟苯甲醛进行定量测定。该方法简单、快速、准确、适用，标准偏差0．26％、变异系数0．27％、平均回收率100.1％．     

高效液相色谱法研究20％高效氯氰菊酯胺菊酯乳油中氯氰菊酯和胺菊酯的含量

采用高效液相色谱法，使用正相色谱柱（ZORBAX RX－SIL）和紫外检测器（240nm)同时测定高效氯氰菊酯和胺菊酯，流动相为正己烷＋乙酸乙酯（93＋7），该方法的偏差为0．07％和0．09％，变异系数为0．69％和0．9％，回收率为99．1％－101．3％和99．7％－101．2％     

高效液相色谱法检测水中多环芳烃

介绍了利用高效液相色谱检测水中PAH的方法。采用SHIMADzN—C18色谱柱，在CH3OH：H2O＝95：5为流动相，柱温40℃，最大柱压160MPa的条件下进行分析，所得结果的准确度高，Fa和BaP的回收率分别为88％-94％和89％-99％，线性相关系数分别为0．999和0．992。     

氟吡磺隆高效液相色谱分析

采用SB-C18 HPLC色谱柱，以甲醇，水（90，10）为流动相，选择254nm为检测波长对氟吡磺隆进行分离和定量分析检测。结果表明本方法的标准偏差为0．0017，变异系数为0．36％，相关系数R^2为0．9999，回收率为98．85％-101．73％。     

25%炔螨特乳油的气相色谱分析

采用气相色谱法，以二十二烷为内标物，OV－101为填充柱，用FID检测器进行25％炔螨特含量的分析。本方法的标准偏差为0．1199，变异系数为0．4737％，线性相关系数为0．9989，回收率为98．74％－100．1％。     

乙二醇缩糠醛的气相色谱分析

使用3％OV－17色谱柱和氢火焰离子化检测器，以萘为内标物，对乙二醇缩糠醛进行气相色谱定量分析。该方法简单、快速、准确。其标准偏差为0．34，变异系数为0．35％，回收率为99．76％－100．64％。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料，介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比，介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序，对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.