浓度

Results of a series of orthogonal design methods demonstrate that a crosslinked PAA superabsorbent composite with sodium tungstate, which is synthesized with a composition of 45.5 wt% of monomer, 0.4 wt% of crosslinker, 1.0 wt% of initiator, a neutralization degree of 83%, and a reaction temperature of 90℃, has a good water absorbency.

此外，通过对WPAA-Na的制备与吸水性能的一系列正交实验分析后得出，当单体浓度为45.5%、反应温度为90oC、交联剂浓度为0.4%、引发剂过硫酸钾浓度为1.1%以及中和度为0.85时，树脂的吸水倍率为佳。

The Ca/Porg of CPP1 produced by hydrolyzing casein with pancreatin, decreased to 0.74 and 0.53 respectively when temperature increased to 30 and 35℃.

浓度达200ppm时，CPP1可使溶液中的钙在1小时的反应时间内几乎不沉淀。升高温度到35℃后，CPP1的最低有效浓度增加为25ppm。在35℃，Ca：P增为2：1时，CPP1的最低有效浓度增加至100ppm。

It was found that Pelargonium citrosum Vanleenii proliferation period can be prolonged in proper concentration of Ca~(2+).

结果表明：适当提高Ca2+的浓度，可以延长驱蚊香草试管苗的正常增殖生长周期；不同浓度的Ca2+处理对驱蚊香草试管苗增殖的影响要大于对其生根的影响；驱蚊香草试管苗体内Ca2+含量与试验培养基中Ca2+浓度成线性正相关。

There was a low accumulation of Pb in Pelargonium horlarum. When the Pb concentration in soil was increased by 1500 mg/kg, the Pb was accumulated by 169.5 mg/kg only. The plant content of Pb was lower than the hyperaccumulator critical content. The shoot' accumulation of Pb was significantly higher than that of root.

随着土壤中铅浓度增加，与对照相比，生物量在铅浓度增加1000 mg/kg时，才有显著下降；但对铅的吸收量较低，当土壤中铅浓度增加1500 mg/kg时仅吸收169.5 mg/kg；地上部分吸收量远小于地下部分的吸收量，转移系数小于0.5。

Methods: The health adult human primary hepatocyte microsome was randomly divided into 12 groups for control and itraconazole with different concentrations in the range of clinical drug blood concentration, each group have 10 samples. Control groups were added culture fluid, itraconazole groups were added itraconazole with different concentration respectively, after cultured 30 minutes, substrates (phenacetin for CYP1A2, testosterone for CYP3A4) were added and cultured for another 40 minutes.

采用健康成人肝细胞微粒体，分为对照组和不同浓度的伊曲康唑组，共12组，每组10个样本，伊曲康唑组分别加入血药浓度范围内不同对应浓度的伊曲康唑，对照组仅加入培养液，孵育30 min后，再加入CYP450同工酶1A2和3A4的相应底物再孵育40 min。

The result showed that the optimal condition of inorgano-absorbent manufacture as following: concentration of vitriol is 15%, the bentonite carrier must be soaked in the 0.4% La(superscript 3+) solution, the pH is 10, microwave radiation power is 340 W for 5 min. The optimal condition of organo-absorbent manufacture process as following: concentration of CTMA is 5%. The rate of wave must 166 W and the time of radiation is 6 mi In addition, the experimental results showed that with inorgano-absorbent the pH number is 3~6 and the reaction time is 45 min, the removal efficiency of phosphor will be up to 99% and the amount of adsorption will be up to 41 mg/g. And with organo-absorbent the pH number is 3~4 and the reaction time is 45 min, the removal efficiency of phosphor is more 30% than that of inorgano-absorbent. The removal efficiency of phosphor will be up to 99% and the number of adsorption will be up to 60 mg/g.

实验表明：①制备无机稀土吸附剂的适宜条件为：硫酸浓度15%，镧浓度0.4%，浸渍pH值10，微波功率340 W，辐射时间为5 min；②制备有机稀土吸附剂的适宜条件为：表面活性剂浸泡浓度为5%，微波功率为166 W，微波辐射时间为6 min；③无机稀土吸附剂当溶液的pH值为3~6，振荡时间为45 min时，对磷去除率为99%以上，吸附量达到了41 mg/g以上，有机稀土吸附剂当溶液的pH为3~4，振荡时间为45 min时，其效果比原来镧改性的无机吸附剂吸附量提高了30%，磷去除率为99%以上，吸附量达到了60 mg/g以上。

Methods Synaptosomes was made from hippocampus and incubated with artificial cerebrospinal fluid. 30μmol/L propofol, 50μmol/L picrotoxin or both was added into aCSF. Intralipid was administered as solvent control and any drugs was applied in control. To observe Ca~(2+)-dependent release of glutamate and GABA, dihydrokainic acid and nipectic acid were added into aCSF.

制备大鼠海马突触体，随机分为5组：PTX组加入印防己毒素使其终浓度为50μmol/L，Pro30+PTX组加入终浓度为30μmol/L的丙泊酚和50μmol/L的PTX，Pro30组加入终浓度为30μmol/L的丙泊酚，溶剂对照组加入脂肪乳，空白对照组不加入上述药物。

When the sulfur concentration is in the range of 0～4 mg/L, the elemental sulfur has a linear relation with the peak current of polarography.

该方法灵敏度高，当元素硫浓度为0.1 mg/L 时仍可以看到明显峰电流；精密度和准确度较好，对1 mg/L 元素硫的测定，标准偏差为0.02；元素硫浓度在0～4 mg/L 浓度范围与极谱峰电流呈线性关系。

The change of frequency, draws the conclusion through observing fish's respiratory rate and coughing: Luo is not the respiratory rate of fish and bright cloud porgy, drop with increase of Cu2+ density, cough frequency increases with increase of Cu2+density; Respiratory rate and frequency of coughing of black carp, appear downward trend after rising with Cu2+ increase of density first.

通过观察鱼呼吸频率和咳嗽频率的变化，得出结论：罗非鱼和彩云鲷的呼吸频率，随着Cu2+浓度的增加而下降，咳嗽频率随着Cu2+浓度的增加而增加；鲫鱼的呼吸频率和咳嗽频率，随着Cu2+浓度的增加都呈现先上升后下降的趋势。

With prehensive control measures , development of technological innovation and using new chemical materials ,concentrations of dust and toxicants have significantly lowered except the noise. The characteristics of hazards in

采取综合性防治措施后，粉尘、毒物浓度明显下降，铸造作业职业危害特点是低浓度粉尘、多种低浓度毒物与高噪声强度共存。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

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如果有任何问题，你可以随时联系我。