九种致癌染料剥色工艺的优化

针对纺织品上可能存在的九种致癌染料(C.I.酸性红26、C.I.分散橙11、C.I.分散黄3、C.I.分散蓝1、C.I.直接蓝6、C.I.直接黑38、C.I.直接红28、C.I.碱性红9、C.I.碱性紫14),本文研究并比较了不同剥色工艺对不同致癌染料剥色效果的影响.并提出选用加入尿素的甲醇作为剥色剂,使用超声功率为100W的超声波在70℃处理30分钟可以获得比较理想的剥色效果.     

2种生物农药对亚洲玉米螟的杀虫活性

用Potter喷雾法测定了2种生物杀虫剂阿维菌素和B.t.对亚洲玉米螟3龄幼虫的毒力.结果表明:药后24、48、72 h阿维菌素的LC50值分别为8.23、4.83、4.05 mg/L,B.t.的LC50值分别为4.62 × 106 2.23×106、1.86 ×X 106 IU/L.田间药效试验结果显示:阿维菌素和B.t.制剂对亚洲玉米螟具有良好控制作用,1.8%阿维菌素乳油(16.2 g a.i./hm2)、8000 IU/mg B.t.可湿性粉剂(1.44 × 1010IU a.i./hm2)和2000 IU/mg B.t.颗粒剂(1.44×1010IU a.i./hm2)的防治效果分别为83.24%、86.60%、84.32%,显著优于各药剂较低剂量处理的防治效果.     

重金属污染土壤腐植酸绿色原位固化修复工艺

一、基本信息 1.申请号:CN201811501221.1. 2.发明人:田原宇、乔英云、谢克昌、杨朝合. 3.专利权人:中国石油大学(华东). 4.授权时间:审中. 5.技术领域:本发明提供的重金属污染土壤腐植酸绿色原位固化修复工艺,涉及重金属污染土壤的净化治理,尤其涉及受铬污染土壤的修复. 二、发明内容 本发明的目...     

一种用于潮土的土壤调理剂

一、基本信息 1.专利号:ZL201711246372.2. 2.发明人:李兆君、张会申、冯瑶、张宁. 3.专利权人:中国农业科学院农业资源与农业区划研究所. 4.授权时间:2021年6月29日. 5.技术领域:本发明属于土壤调理剂技术领域,尤其涉及一种用于潮土的土壤调理剂. 二、发明内容 针对现有土壤存在的物理结构恶...     

混合二元酸甲酯化反应液中多组分气相色谱法定量

将混合二元酸甲酯化反应液进行衍生处理,考察衍生温度和时间对检测结果的影响,采用气相色谱法-氢火焰离子化检测器(FID)对反应液中多组分进行定量分析。研究表明琥珀酸、戊二酸、己二酸、琥珀酸二甲酯、戊二酸二甲酯、己二酸二甲酯、琥珀酸单甲酯、戊二酸单甲酯和己二酸单甲酯9种成分分别在0. 05%～0. 27%、0. 04%～0. 21%、0. 008%～0. 04%、0. 22%～1. 09%、0. 68%～3. 40%、0. 17%～0. 83%、0. 28%～1. 38%、0. 33%～1. 62%和0. 08%～0. 42%范围内呈良好线性关系(r≥0. 9998),平均回收率良好,可准确判断反应产率,为混合二元酸甲酯化工业稳定生产提供了理论依据和数据支持。     

生物过滤法处理炼油污水厂恶臭废气

为了考察生物过滤法处理炼油污水厂恶臭气体的可行性,本试验采用两个串联的填充堆肥、树皮和火山岩混合物的三段式生物过滤反应器连续处理某炼油污水厂浮选池的恶臭废气。考察了主要污染物的去除、冲击负荷影响和填料中营养物质的变化。试验结果表明：空床停留时间66 s时, 非甲烷总烃、苯、甲苯及二甲苯的进口浓度范围分别为5. 1～1081. 8、0. 1～328. 8、0. 2～91. 8、0. 2～48. 2 mg·m-3时,平均去除率分别为79. 7%、98. 9%、98. 8%、99. 6%;对废气浓度变化的适应性好;反应器的渗沥液应通过喷淋返回填料层。应用该生物过滤器能成功地去除炼油污水厂浮选池排放的恶臭废气。     

一种土壤修复剂及其在氯代烃污染土壤修复中的应用

一、基本信息 1.专利号:ZL201610402088.9. 2.发明人:李捷、王媛媛、杨帆、于淑亭. 3.专利权人:无锡虞衡环境科技有限公司. 4.授权时间:2020年3月10日. 5.技术领域:本发明涉及污染土壤修复技术领域,尤其涉及一种土壤修复剂及其在氯代烃污染土壤修复中的应用. 二、发明内容 本发明的目的在于提...     

《中华手工》全国购买指南

您可以通过以下渠道,购买到《中华手工》:1.全国各地书报亭。2.重庆机场、上海浦东机场、上海虹桥机场、厦门机场、北京图书大厦、王府井书店、中关村图书大厦等特殊渠道。3.扑淘网(www.aiputao.com)。4.京东商城及亚马逊搜索"中华手工"。5.《中华手工》特约发行站。     

七种亚硝化反硝化聚磷菌的生长特性研究

亚硝化反硝化聚磷菌(NDPAOs)以亚硝酸盐为电子受体,具有同时脱氮除磷的特点,能够最大程度地减少碳源和氧气需求,因此可以大大减少能耗,节约成本。试验研究了7种NDPAOs——肠杆菌属(Ent.)、葡萄球菌属(Sta.)、副球菌属(Par.)、泛菌属(Pan.)、克雷伯氏菌属(Kle.)、芽孢杆菌属(Bac.)和莫拉氏菌属(Mor.)的释磷特性,并以纯培养的方式研究了它们的生长特性。结果表明,缺氧反应20 h后,Sta.、Bac.、Par.、Kle.、Pan.、Ent.和Mor.的单位细胞吸磷量分别为1.98×10-11、1.64×10-11、1.43×10-11、1.13×10-11、9.59×10-12、7.72×10-12和6.28×10-12mg/cfu。Ent.、Kle.、Bac.、Pan.、Par.、Sta.和Mor.的缓慢期几乎都处于0～6 h之间,对数期分别为6～144、6～72、6～96、6～52、6～31、6～96和6～72 h。Par.、Sta.、Pan.和Mor.的对数期的生长速率较Ent.、Bac.和Kle.的小。不同菌属的亚硝化反硝化聚磷菌的生长特性也不完全相同,特别是对数期的生长速率以及维持的时间相差较大。     

《中华手工》特约联盟好店(全国购买指南)

<正>您可以通过以下渠道,购买到《中华手工》:1.全国各地书报亭、新华书店。2.重庆机场、上海浦东机场、上海虹桥机场、厦门机场、北京图书大厦、王府井书店、中关村图书大厦等特殊渠道。3.漫淘网(www.mantao.com)。4.京东商城及亚马逊搜索"中华手工"。5.《中华手工》特约联盟好店。     

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.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

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.