查询词典 reagents

So even if the bugs and their secreted proteases do not chop your sample into bits, they can degrade reagents, alter the pH of the solution, or generate chemical species which can influence crystallization and even make reproducing conditions a pain in the tush.

就算这些可恶的家伙们没有将你的样品"嚼碎"，它们也可能影响你的试剂，改变溶液的pH，产生可能干扰结晶的化学物质，使得你的实验很难重复出来。

C. Functionalization of [60]Fullerene with Vaporous Reagents via Its Calix[8] arene Complex Supramolacular complexes are applied widely in synthesis chemistry.

结果表明，它们均是有效的硅氢化催化剂，并具有某些独特的催化性能，如在催化苯乙烯的硅氢加成时，以高达85％-100％的区域选择性得到α-加成物。

Effects of different fruit-retaining reagents upon fruiting on Yunan seedless wampee;2. To probe into the seedless reason of fruit of the Linyuan 1 seedless wampee ,the Linyuan 1 seedless wampee is observed at its flower organs, pollen quantity and degree of satiation, and germination, and compared with the seed wampee.

为了探讨林院 1号无核黄皮果实无籽的原因，于 1992年～ 2 0 0 0年在广西大学林学院观察林院 1号无核黄皮的花器、花粉数量及饱满程度、花粉萌发情况，并和有核黄皮比较；采用随机区组试验设计，对林院 1号进行自然授粉、去雄不授粉套袋、去雄后用有核黄皮花粉授粉并套袋的授粉试验；观察林院 1号的授粉受精过程。

Company to "westernize" trademark licensing was in Guangdong Province Administration for Industry and Commerce identified as the famous brand in Guangdong, the production of chemical reagents, chemicals, pharmaceutical raw materials, food additives, a printed circuit board chemicals and photographic materials and other products over the years in With the chemical industry sales among the best in the market, of which chemical agents and food additives products by the State Quality Supervision Bureau checks and China in light of product quality protection center approved for the and China BrandName by the national and provincial Quality Supervision, Inspection and Quarantine Bureau confirmed to be granted admission to the announcement of qualified enterprises.

公司"西化"牌商标被广东省工商行政管理局认定为广东省著名商标、所生产之化学试剂、化工原料、医药原料、食品添加剂、印刷电路板专用化学品和感光材料等产品历年来在全国同行业化工市场中销量名列前茅，其中化学试剂和食品添加剂系列产品经国家质量监督局抽查和中国中轻产品质量保障中心核定为和{中国名优产品}，并由国家及省质量监督检验检疫局确定为准予取予公布的合格企业。

PS developering is mainly composed of reagents, inhibitors and wetting agent.

PS版显影液主给由显影剂、抑制剂以及湿润剂构成。

The method has advantage of cheap reagents, simple workup procedure.

目前，光致变色高聚物已经得到了广泛的应用[8，9]。

METHODS Acetylacetone, 4－Dimethylaminobenzaldehyd and alcohol without aldehyde were used as color reagents. The determination method was colorimetry.

以乙酰丙酮、无醛乙醇和对二甲氨基苯甲醛溶液为显色剂，用比色法测定。

Organozinc reagents can react with a variety of α,β-acetylenic ketones and aldehydes in the absence of any catalyst. The one-pot reaction affords β-branched Baylis-Hillman type adducts, the multifunctionalized alkenes, in excellent yields with high stereoselectivity.

这种顺式亲核加成反应的发生是由于该类有机锌试剂既具有较强的亲核性，又具有Lewis酸的特性，使有机锌中R基团从同位进攻中心碳原子而形成新的碳碳键。

Methods Adrenocorticotropic hormone level in the supernatants of AtT-20 cells from the pituitary gland tumor was detected by radioimmunoassay at the given time points following administrating reagents and effects of R--MeHA ACTH on the cell proliferation was observed.

方法以高表达组胺H3受体的垂体细胞瘤AtT-20作为观察系统，用放免分析法测定给予H3受体激动剂后各时间点细胞上清液中ACTH分泌量的变化，并观察药物对细胞增殖的影响。

The amount of water in adrop or acrystal,the purity,the chemical composition,and how the water interacts with itself,the sample,and reagents are all critical variables in aprotein crystallization experiment.

液滴中或晶体中水分的量，纯度，化学组成，以及水分子之间/水分子与样品或结晶试剂之间的相互作用方式等，这些都是影响结晶过程的变数。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。