阿玛托说,尽管诸如方铅矿一类的大部分含铅化合物都是不可容的,像羟氯铅矿这样的化合物还是“可以微溶于水,并产生Pb 2 +(二价铅离子)”。
Amatore says that although most lead compounds, like galena, are insoluble, compounds like laurionite 'can dissolve a little bit to produce Pb2 +.'
以木屑纤维素为原料,以3 -氯- 2 -羟丙基三甲基氯化铵(CTA)为醚化改性剂,制备了阳离子木屑纤维素。
The cationic sawdust cellulose was prepared with the sawdust cellulose as raw material and 3-chlorine-2-hydroxypropyl chloride (CTA) as an etherification modifying agent.
以可生成多核羟桥络离子的两性金属盐NT-2为交联剂。
The crosslinker used is an amphoteric metal salt, NT-2, capable of forming polynuclear olation complex ion.
综述了异羟肟酸类化合物的合成及其近年来在催化氧化和高选择性络合金属离子的应用研究新进展。
This article reviews the synthesis of hydroxamic acid, and its new applications in the fields of catalytic oxidation as well as highly selective complexation with metal ions.
此外,在滞后时间药物之释出速率受到羟丙基甲基纤维素凝胶化程度与溶离 液离子强度影响。
The release rate after the lag time was determined by the extent of retardation of gelation of HPMC in the core tablet based on the ionic strength of the medium.
推测电离辐射的上述生物学效应正是由辐照细胞生成的超氧阴离子和羟自由基引起的。
It was suggested that those biological effects were caused by superoxide anions and hydroxyl radicals produced in irradiated cells.
以某厂羟胺反应器的氢离子浓度控制为例,介绍了径向基函数(RBF)神经网络在强非线性对象预测控制中的应用及仿真研究结果。
The application of RBF neural network in hardy nonlinear system and the result of simulation is introduced. An example of pH control in hydroxylamine reactor is described.
合成了阳离子羟丙基瓜尔胶(CHPG),研究了该系列瓜尔胶衍生物对旧报纸脱墨浆的助留助滤作用。
This paper discussed retention and drainage properties of a series of cationic-hydroxypropyl guar gum derivatives(CHPG), which were successfully synthesized in our lab.
研究2-乙基-3-羟基-6-苯硫基-4(1H)-吡啶酮(HPP)对羟自由基和超氧阴离子自由基的影响。
The effects of 2-ethyl-3-hydroxy-6-phenylthio-4(1H)-pyridinone (HPP) on hydroxyl radical and superoxide anion radical scavenging activity was studied.
在非离子洗涤剂中,亲水性是基于多羟群和其它亲水残余物的存在而产生。
In nonionic detergents, hydrophilicity is based on the presence of multiple hydroxyl groups or other hydrophilic groups.
羟丙基甲基纤维素是以天然高分子材料纤维素为原料,经一系列化学加工而制成的非离子型纤维素醚。
Hydroxypropyl methyl cellulose is a natural polymer cellulose as raw material, through a series of chemical processing and made of nonionic cellulose ether.
与WPC相比,SWPC清除羟自由基的能力显著提高,但清除超氧阴离子自由基的能力有所下降。
Compared with WPC, the effect of SWPC on scavenging hydroxyl radicals had been improved a lot, while diminished on scavenging superoxide anion radicals.
简要介绍了以3-氯-2-羟丙基三甲基氯化铵为阳离子醚化剂合成的阳离子淀粉在氯碱工业中的应用。
The application of cationic starch which was synthesized by using 3-chloro-2-hydroxypropyl trimethylammonium chloride as cationic etherifying(agent) in chlor-alkali industry was briefly introduced.
目的研究甲状旁腺素、1,25 -双羟维生素d3、循环ras活性、细胞内钙离子与原发性高血压的关系,及其各指标间的相关性。
Objective To investigate the relationship between serum intact parathyroid hormone, 1, 25-dihydroxyvitamin D3, circulation RAS activity and essential hypertension, and analyze their correlativity.
结论在实验条件下,缬草醚酯提取物对DPPH自由基、羟自由基、超氧阴离子有较好的抑制作用。
ConclusionThe extract has good scavenging effect on DPPH ·, OH · and O2 - · under the condition of experiment.
结论在实验条件下,缬草醚酯提取物对DPPH自由基、羟自由基、超氧阴离子有较好的抑制作用。
ConclusionThe extract has good scavenging effect on DPPH ·, OH · and O2 - · under the condition of experiment.
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