查询词典 pesticide

Shenyang Research Institute of Chemical Industry, Shenyang 110021, China Abstract: Spectrophotometric analysis showed that the peak absorbance for food dye of Allura Red and biological dye of Ponceau-G occurred at 501 and 510 nm. In sunlight after 2, 4, 6, 8, 10 hours, the decomposition rates of Allura Red and Ponceau G were between 2.4 to 5.8% and 3.4 to 10.8%, so they are stable in sunlight. The recovery rates on cottons and glasses were very high, so they are easily recoveried from targets. Further studies showed that the recovery rates of two dyes on the leaves of wheat, cabbage, cucumber and tomato were different, so it need previously determine the recovery rate of tracer on the target crop to adjust the result. Field experiment showed it was easy to measure the pesticide spray distribution of high volume spay and low volume spray to use Allura Red and Ponceau-G as tracers.

沈阳化工研究院，沈阳 110021 摘要：光谱分析表明，食品染色剂诱惑红和生物染色剂丽春红-G的最大吸收波长分别为501 nm和510 nm ；在连续2、4、6、8、10 h阳光照射下，分解率分别在2.4%~5.8%和3.4%~10.8%之间，见光稳定性良好；两种染色剂在棉花叶片和玻璃片上的洗脱回收率都很高，说明易于从靶标上洗脱下来；进一步测定表明，两种染色剂在小麦、甘蓝、黄瓜、番茄叶片上的洗脱回收率各不相同，所以对准备进行测试的作物应先做一次洗脱回收率试验，用以校正测试结果；田间应用表明，用两种染色剂做示踪剂，可以方便地测定常量喷雾和低容量喷雾过程中农药在麦田的沉积分布情况。

Production and sales companies: particle detector strength, freeze-drying machine, snow ice machine, glass reactor, rotary evaporator, electronic balance, ultrasonic cleaning machines, ice making machine, industrial ice-making machine, constant temperature and humidity box, microscope several significant oil bath temperature pot / water bath pot, Ma fluoride furnace, low temperature cooling liquid circulating pump, circulating water-type multi-purpose vacuum pump, mold incubator, biochemical incubator, constant temperature incubator, vacuum oven, blast oven, super - net workbench, biosafety cabinets, magnetic stirrer, centrifuge, ultrasonic cell pulverizer, ultra-pure water machines, autoclaves, laboratory various beaker, Bio-Rad power supply, test-bed, constant temperature circulator, low temperature cycle at high pump, pesticide Tachometer, UV analyzers, liquid machine, PCR device, liquid chromatography, weather chromatograph, total acidity / PH, the spectrophotometer, ultra-low temperature refrigerators, constant-current pumps, rotary vane type vacuum pump, auto parts traps, low-temperature thermostat bath; and other products.

公司生产销售：颗粒强度测定仪，冷冻干燥机，雪花制冰机，玻璃反应釜，旋转蒸发器，电子天平，超声波清洗机，冰块制冰机，工业制冰机，恒温恒湿箱，显微镜，数显恒温油浴锅/水浴锅，马氟炉，低温冷却液循环泵，循环水式多用真空泵，霉菌培养箱，生化培养箱，恒温培养箱，真空干燥箱，鼓风干燥箱，超净工作台，生物安全柜，磁力搅拌器，离心机，超声波细胞粉碎机，超纯水机，高压灭菌器，实验室各种烧杯，电泳仪电源，实验台，恒温循环器，低温循环高空泵，农残速测仪，紫外分析仪，移液枪，PCR仪，液相色谱，气象色谱仪，酸度计/PH计，分光光度计，超低温冰箱，恒流泵，旋片式真空泵，自动部分收集器，低温恒温槽；等系列产品。

Elaborated the development of biology pesticide Bt and application from the angle of the market, stressing integral product idea while, emphasize particularly on management of market industry chain, discussed current main problem to offer improvement and development proposal.

从市场的角度阐述了生物农药Bt的发展和应用，在强调整体产品概念的同时，侧重市场产业链管理，讨论了目前的主要问题并提出改善与发展建议。

D-lactic acid is considered to be a very important chemical compound as a chiral material or intermediate in organic synthesis. D-LA is a prosoma of many chiral compounds with applications not only in the pharmaceutical and cosmetic industry but also in highly efficient and lowly toxic pesticide and herbicide.

D-乳酸是重要的手性中间体与有机合成原料，是多种手性物质的前体，广泛应用于制药、化妆品和高效低毒农药及除草剂等领域的手性合成。

The thesis was designed to optimize the cultures of producing D-LA bySporolactobacillus sp. and analyze the effects on fermentation in order to produceD-LA effectively.D-lactic acid is considered to be a very important chemical compoundas a chiral material or intermediate in organic synthesis. D-LA is a prosoma of manychiral compounds with applications not only in the pharmaceutical and cosmetic industry but alsoin highly efficient and lowly toxic pesticide and herbicide.

本研究的目的是通过对芽孢乳杆菌发酵工艺的研究，建立一条产物光学纯度高、工艺简单，成本较低的D-乳酸生产路线。D-乳酸是重要的手性中间体与有机合成原料，是多种手性物质的前体，广泛应用于制药、化妆品和高效低毒农药及除草剂等领域的手性合成。

Base on the organic pear orchard in region of Beijing, study the Psylla chinensis characteristics and its occurrence regulation. on this foundation,the key techniques of management methods, such as agriculture and Plant Pesticide control have been studied.

本试验研究了北京地区有机梨园中国梨木虱发生特点及发展规律，并以此为依据，对其发生早期的农业及药剂防治等多种措施的抑制效果进行了研究。

Usually the Pyrethrin pesticide of vegetables is measured by routine method which needs long time、high cost and is not applicable to/for fast filter of vegetable market.

蔬菜中的拟除虫菊酯类农药的检测一般采用常规方法，此方法检测时间比较长、成本比较高，不适合蔬菜市场上快速的筛选。

In addition to the regular use of a vacuum cleaner suction carpet dust can also be used ethers of Pyrethrin pesticide spraying in the carpet, or cotton cloth dipped in turpentine carpet.

经常用吸尘器吸除地毯上的灰尘，还可以用除虫菊酯醚类的除虫剂喷洒在地毯上，或用棉纱蘸松节油擦拭地毯。

The method is a traditional colorimetry and is direct ratio with the content of Pyrethrin pesticide and absorbency in a concentration area. The best absorbency wavelength is 505nm and it is ideal about the recovery.

本方法采用传统的比色法，在一定浓度范围内拟除虫菊酯类农药的含量与吸光度呈正比关系，最佳测定波长为505nm，样品的回收率比较理想。

The aim of the research was to provide references for pesticide exploitation with the extract of pyrethrum.

［目的］为把天然除虫菊提取物开发成商品农药并成为化学合成农药的替代品提供依据。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。