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Electrochemical oxidization of sulfide on platinum in alkaline solution has been studied by using electrochemical techniques.

用电化学方法研究了碱性溶液中硫化物在Pt电极上的氧化过程。

The paper studies the color range of papaver rhoeas red pigment under pH values, and compares it with the other indicators by the acid-base titration.

本文研究了虞美人色素在不同pH值溶液中的颜色变化,并通过虞美人色素和其它指示剂进行酸碱滴定的比较,结论为:虞美人色素能准确指示酸碱滴定的终点,其变色范围pH 6.33~8.25,颜色由紫红色变为棕色

Plasmid DNA of pBILGC containing Chitinase and β-1, 3 - glucanase gene and fresh pollen of Papaver nudicaule were mixed in 11% sucrose solution, then the pollen suspension were pollinated on stigmas of the Papaver nudicaule by artificial pollination.

以野罂粟开放花蕾为受体,以载有几丁质酶和β-1,3-葡聚糖酶基因双价植物表达载体pBLGC的质粒为供体,在11%浓度的蔗糖溶液中,加入花粉和含有目的基因的质粒DNA。得到药粉处理液。

ABSTRACT The decomposition temperature and heat of cefazolin sodium pentahydrate were measured by the differential scanning calorimetry technique.

在溶液结晶过程中结晶物系的物理化学性质(如溶解度、熔解热、介稳区等)对结晶操作、结晶收率、产品纯度和产品的粒度分布均有较大影响,结晶物系的热力学性质是结晶动力学和结晶工艺研究的基础。

ABSTRACT The decomposition temperature and heat of cefazolin sodium pentahydrate were measured by the differential scanning calorimetry technique. Its solubility data in various mixed solvents of water ethanol, water acetone, and water 2 propanol were obtained by the laser method and fitted by the exponential model.

在溶液结晶过程中结晶物系的物理化学性质(如溶解度、熔解热、介稳区等)对结晶操作、结晶收率、产品纯度和产品的粒度分布均有较大影响,结晶物系的热力学性质是结晶动力学和结晶工艺研究的基础。

ABSTRACT The decomposition temperature and heat of cefazolin sodium pentahydrate were measured by the differential scanning calorimetry technique. Its solubility data in various mixed solvents of waterethanol, wateracetone, and water2propanol were obtained by the laser method and fitted by the exponential model.

在溶液结晶过程中结晶物系的物理化学性质(如溶解度、熔解热、介稳区等)对结晶操作、结晶收率、产品纯度和产品的粒度分布均有较大影响,结晶物系的热力学性质是结晶动力学和结晶工艺研究的基础。

Crystallization thermodynamics of cefazolin sodium pentahydrate ABSTRACT The decomposition temperature and heat of cefazolin sodium pentahydrate were measured by the differential scanning calorimetry technique.

在溶液结晶过程中结晶物系的物理化学性质(如溶解度、熔解热、介稳区等)对结晶操作、结晶收率、产品纯度和产品的粒度分布均有较大影响,结晶物系的热力学性质是结晶动力学和结晶工艺研究的基础。

It was shown that the 5% perchloric acid and 20 Adm^2 current density were good to electropolishing of the titanium alloy.

抛光后的钛合金表面形貌观察结果表明:在高氯酸含量较低(5%)的溶液中以20 Adm^(-2)电流密度抛光可以取得较理想的效果。

The antioxidative action may involve trapping the initiating radicals generated by AAPH in the bulk phase, inhibiting the propagating lipid peroxyl radicals on the surface of micelles and regeneratingα-tocopherol by reducing theα-tocopheroxyl radical.

在均相溶液中,这些化合物单独使用时都是很好的抗氧化剂,但是只有杨梅树素产生了抑制期,其他化合物均降低了引发速率。

A catalytic kinetic spectrophotometric method has been established for the determination of trace Mn, based on the catalytic action of Mnon the oxidation - reduction reaction between KIO4 and KI in the presence of 1, 10 -phenanthroline and in HAc-NaAc buffer solution.

本文研究了HAc-NaAc缓冲溶液中,在1,10—菲啰啉激活作用下,锰对KIO4-KI氧化还原反应的催化动力学条件,建立了催化动力学光度法测定痕量锰的方法。

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推荐网络例句

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。