浓度

At the same time, the intensity ratio of the ICT fluorescence to the LE fluorescence, I〓/I〓, shows a "bell"-shaped variation with increasing CTAB concentration The intensity ratio was found to level off after the CMC of CTAB Together with the data from UV-Vis absorption spectroscopy, electric conductance measurements and the control experiments with tetramethylammonium bromide, it was concluded that the"bell"-shaped variation in the intensity ratio before CMC is due to the formation of premicelle aggregates consisting of ICT fluorophore and CTAB.

此时，ICT荧光强度与LE荧光强度之比，I〓/I〓随CTAB浓度增大而呈&钟形&变化。当CTAB浓度高于CMC时，I〓/I〓为一常数。根据紫外-可见吸收光谱，电导以及四甲基溴化铵对照实验的结果可知，当CTAB浓度低于其CMC时，I〓/I〓的&钟形&变化是由于长链对二烷基氨基苯甲酸与CTAB组成的胶束前簇集体形成所致。

The preliminary bioassay showed that all compounds had certain fungicidal and insecticidal activities. The inhibition rates of compounds 5f and 5h were above 95% against Colle-totrichum gossypii at 100 mg/L, and the mortality rates of compounds 5g and 7d were above 85% against Tetranychus urticae at 250 mg/L.

初步生物活性测定结果表明，在试验浓度下，目标化合物均具有一定的杀虫和抑菌活性，其中化合物5f和5h在100 mg/L浓度下对炭疽病菌的抑制率达95%；化合物5g和7d在250 mg/L浓度下对棉红蜘蛛的致死率达85%。

The toxical effects of nonylphenol ethoxylates and nonyiphenol were studied with EROD in liver of carp as biomarker under external condition. These two tested substances all had activation on EROD enzyme in liver of carp. Under definite range of concentrations, with the affecting rule of inhibiting at high concentration and inducing at low concentration.

在离体条件下，以鲤鱼肝脏EROD酶为生物标志物研究了壬基酚聚氧乙烯醚及壬基酚的毒性效应结果表明，在一定的浓度范围内，2种受试物对鲤鱼肝脏EROD酶均有激活作用受试物浓度对EROD酶的活性的影响规律为高浓度时抑制，低浓度时诱导。

The experiment products met the specification of HG2340-92 in terms of its first class tribasic lead sulfate.The optimum leaching process parameters were as follows:NaCl concentration 5.5mol/L,leaching temperature 100℃,leaching time 120min,CaCl_2 con...

采用此工艺在实验室制得符合HG2340-92标准一级品要求的产品，并确定浸出过程的最佳工艺参数是：NaCl溶液浓度≥5.5mol/L，浸出温度≥100℃，浸出时间120min，CaCl2浓度0.3mol/L，HCl浓度0.15mol/L，液固比8∶1；合成三盐基硫酸铅的最佳工艺条件为：PbSO4∶NaOH=4∶6，液固比≈2∶1，室温反应时间60min，溶液的终点pH8.4~8.8。

When the concentration of zinc nitrite is lower than 0.1 M,(002) is the prior face for zinc oxide. As the concentration raise, the other kinds of crystal face would appear. Among those data,(002) grows the best when the concentration of zinc nitrite is 0.06 M. We add lactic acid and citric acid respectively; there is an carboxyl group on the lactic acid and three carboxyl groups on the citric acid. The monodentate of lactic acid helps the growth of zinc oxide, compared to the tridentate of citric acid which can only produce zinc oxide film under very low concentration, but the growth of (002) face is not that stable as adding the lactic acid and zinc will electrodeposit to substrate.

实验中，当硝酸锌浓度低於0.1 M 时，氧化锌以(002)面为优选位相，当浓度提高，其他晶面将会出现，当硝酸锌为0.06 M，(002)晶面成长最佳，分别加入乳酸和柠檬酸，乳酸结构上有一羧基团而柠檬酸有三个羧基团，单芽基的乳酸有助於氧化锌成长，对照於三芽基的柠檬酸，则必须在极低的浓度下才能制备氧化锌薄膜，但(002)面成长却没有添加乳酸来的稳定而金属锌也会电沉积到基板上。

Its concentration and SO(superscript 2- subscript 4) content indicated direct proportion in 2~40 mg/L. It could determine SO(superscript 2- subscript 4) content in tobacco through BaSO4 turbidimetric method.

浓度在2~40 mg/L范围内，其浑浊度与溶液中SO(上标 2-下标 4)浓度成正比，通过比浊法即可测定溶液中的SO(上标 2-下标 4)浓度。

It was used to talculate the abnormal gas concentration of Qingshankou Formation's uncompacted mudstone in Sanzhao depression , Songliao Basin.

利用异常孔隙流体压力和异常温度建立了欠压实泥质源岩异常含气浓度的计算公式，并将其应用于松辽盆地三肇凹陷青山口组泥质源岩异常含气浓度的计算中，结果表明该区青山口组泥岩具有0.5～0.8m3／m3的异常含气浓度，对下伏扶、扬油层中的扩散相天然气具有强的封闭能力。

The concentration of NO and NO2 increases with increasing of frequency and increasing of the distance between electrodes. Electrode polarity unconspicuously affects the concentration of NO and NO2. The distance between electrodes considerably affects radio of NO2 /.

结果发现：放电频率、电极间距对NO 和NO2的浓度影响显著， NO 和NO2浓度随放电频率和放电间距的提高而增加，电极极性对NO 和NO2浓度的影响不明显，电极间距对 NO2 /的比值影响明显。

The results indicate that the deviation of viscosity concentration is still not acceptable for most of the pigments, although the solid content of pigment slurry is well linear with the reciprocal of the square root of viscosity. Furthermore, the slight fluctuation of solid content which is close to the viscosity concentration can cause significant variation of the low shear viscosity according to the calculation, and result in the uncredible test value of viscosity concentration.

结果表明，尽管颜料悬浮液固含量与黏度平方根倒数的线性关系相当好，但对于相当一部分颜料，由此得到的黏浓度数据偏差仍然不可接受；而且根据测算，在黏浓度点附近，固含量的微小波动会造成低剪切黏度很大的变化，导致黏浓度的测定结果不可靠。

A simulated printing and dyeing wastewater, prepared using the undegraded azo dye 4BS and macromolecule chemical dye printing paste CMC as treatment object, the influence of initial pH value, initial concentration, and the concentrations of photocatalyst H2O2 and Fe(superscript 3+) to the photocatalytic degradation effect was investigated, and the related kinetic rule was explored.

以高压汞灯为光源，选用难降解偶氮染料4BS和高分子化学浆料CMC配制的模拟印染废水为处理对象，考察了初始pH值、初始浓度以及光助催化剂H2O2浓度、Fe(上标 3+)浓度对光催化降解效果的影响，并对有关的光催化反应动力学规律进行了探讨。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！