查询词典 pyridine

Dichloro-2 pyridine azo-2,4 diamine methyl benzene is used as the developer for cobalt in determination of trace cobalt in iron ore.

应用5—［（3，5—二氯—2—吡啶）偶氮］—2，4—二氨基甲苯作钴的显色剂测定铁矿石中的微量钴，最大吸收峰位于波长590nm处，摩尔吸光系数为1。

This, Neway Securities analyst Huang Bo told reporters that if the issuance of the smooth passage, the red sun's pesticide rapid expansion of production capacity, at the same time will have to be fat pyrethrum, Pyridine alkali and glyphosate acid three complete industry chain platform, the formation of "intermediate - the original drugs - agents - sales channels," the overall advantage.

为此，新时代证券分析师黄百告诉记者，如果顺利通过发行，红太阳农药迅速扩大生产能力的同时，将必须脂肪除虫菊，吡啶碱和草甘膦酸三个完整的产业链平台，以&中间形成-了-代理商-销售渠道&的整体优势原来的药物。

The paper applied the quantum chemistry methods and systematically studied the following 4 systems:(1) poly(alkylthiophene-co-pyridine)s;(2) carbazolyl-pyridinyl alternating copolymers;(3) 2,7- linked and 3,6-linked carbazole trimers (4) phenol-pyridyl boron complexes.

本文用量子化学方法系统研究了如下4个体系：(1)系列噻吩和吡啶共聚物；(2)咔唑和吡啶交替聚合物；(3) 2，7-咔唑和3，6-咔唑三聚物；(4)苯酚-吡啶硼配合物。

The N-butyl pyridine tetrafluoroborate (BF4) ionic liquid was synthesized, which was used to prepare the phenyl glycidyl ether as solvent and catalyst.

合成了N-正丁基吡啶氟硼酸盐(BF4)离子液体，并将BF4作为溶剂和催化剂用于苯基缩水甘油醚的合成反应。

Another innovation in this thesis is that another cheap and safecomplexant—sodium chloride has been found, but pyridine, phosphorus oxychloride,and phosphoric anhydride etc mentioned in documents were given up.

本文另一创新点在于为反应找到了一种廉价安全的络合剂—氯化钠，摒弃了文献中常用的吡啶、三氯氧磷、五氧化二磷等络合剂。

Solid complexes of rare earth picrates with the ligand 2,6-bis(benzimidazol-2-yl)pyridine have been synthesized and characterized by elemental analysis, IR and electronic spectra. The crystal and molecular structures of the complex [CeL22]·(CH3OH)3 have been determined by single crystal X-ray diffraction.

合成了稀土苦味酸盐与配体2，6-二(2-苯并咪唑基)吡啶的配合物，通过元素分析、红外光谱及电子光谱对配体及配合物进行了表征，并用X射线单晶衍射测定了配合物[CeL22]·(CH3OH)3的晶体结构。

The preliminary bioassay indicated that the pyridine compounds display inhibitory activities against mosquites; pyrazolopyridine compounds possessed some plant growth regulation activity; pyrazole compounds displayed some inhibitory activities against wheat rust and tobacco mosaic virus respectively.

初步的生物活性测定结果表明，吡啶类化合物对蚊子有较好的杀虫作用；吡唑并吡啶类化合物有一定的植物生长调节活性；部分吡唑类化合物对小麦锈病和烟草花叶病毒有较好的抑制效果；部分1，2，3-噻二唑类化合物对烟草花叶病毒有很好的抑制效果，与商品药剂病毒A的效果相近。

This Waste water containing tar, phenol, ammonia, cyanide, benzene, pyridine, quinoline and indole dozens of other pollutants, it is very complex and is high concentrations of pollutants, it is color, toxicity and stable, after biological treatment,there are still a large number of non-degradable organic pollutants, it is a typical example of intractable industrial wastewater.

焦化废水是煤在高温干馏过程中以及煤气净化、化学产品精制过程中形成的废水，其中含有焦油、酚、氨氮、氰、苯、吡啶、吲哚和喹啉等几十种污染物，其水量大，成分复杂，污染物浓度高、色度高、毒性大，性质稳定，经生化处理后，仍有大量难降解的有机污染物，是一种典型难处理的工业废水。

It is a heterocyclic compound, containing a pyridine ring; its chemical formula is C10H14N.

尼古丁为杂环化合物，含啶环，化学式为C10H14N，是纸烟、雪茄和鼻烟中的主要上瘾成分。

M. McCarron III et al.(1984),4[2W12O38].6H2O, a colorless crystalline compound, was prepared by the reaction of white powdery tungstic acid with an aqueous solution of pyridine.

通过粉状白钨酸与吡啶水溶液反应成功地制备了一种无色的晶体(C5H5NH)4

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。