浓度测定

We take biodegradation experiments toward three colonies with different density phenolic waster water, and test their rate of phenolic degrading and speed of bacteria growth in different time period. The results show that the rates of pheolic degrading are more than 95% in 500mg/L phenol and 250mg/L cresol culture solution.

对这三株菌种进行不同浓度的含酚废水降解试验，测定其不同时间段的酚降解率和菌株生长速度，结果表明BP-1，BP-2，BP-3菌在500mg／L的苯酚，250mg／L的甲酚溶液中的降酚率均达到了95％以上。

Roseus crown gall cell cultures. When illuminating-cultured or cultured in the control temperature (25℃), the contents of total alkaloids and ajmaficine were higher than those cultured in continuous dark or lower temperature. Treating with exogenous L-Trp or increa...

测定了光照、温度、蔗糖浓度及外加L-色氨酸前体等，对长春花冠瘿细胞的生长、总生物碱及阿吗碱含量的影响，为长春花冠瘿细胞培养生产吲哚生物碱的实际应用研究提供理论依据。

Methods: The effects of initial and mature biofilms were measured by crystal violet assay under various concentrations of ampicillin and moxifloxacin.

通过结晶紫染色测定吸光度值的变化，观察不同浓度下两种抗生素对早期及成熟生物被膜的影响。

The amino acid histidine and cysteine are the most frequently occurring ligands of zinc in physiological processes.

但在测定生物活体内的游离Zn~(2+)的浓度方面仍存在一定的困难。

By using a vitrating digital densimeter (DMA602/60), the densities of glycine and alanine in aqueous methanol, ethanol and propanol solutions were measured at 298.15 K, and the apparent molar volumes calculated. According to McMillan-Mayer approach, the volumetric interaction coefficients were evaluated.

用DMA602/60型震动管数字密度计测定了298.15 K下甘氨酸、丙氨酸分别在纯水和四个不同浓度甲醇、乙醇和丙醇水溶液中的密度，计算了相应的表观摩尔体积，用最小二乘法拟合了氨基酸在醇水溶液中的标准偏摩尔体积。

By using freshly isolated SD rat cerebrocortical synaptosomes and KC1 as chemical stimulant to depolarize, we studied the effects of etomidate on KCl-induced increased intrasynaptosomal calcium concentrations, voltage-gated calcium channel subtypes on presynaptic membrane and neurotransmitters release from synaptosomes respectively, via neurochemical and inverse phase high performance liquid chromatographic methods.

我们利用SD大鼠新鲜分离的大脑皮层突触体作为研究对象，以KCl作为化学刺激剂去极化，采用神经化学方法(Fura-2作为钙离子指示剂)和高效液相测定法，分别就依托咪酯对去极化诱发突触体内钙离子浓度升高的影响，突触体膜上电压门控性钙通道亚型的作用以及由此引起的对神经递质释放的影响进行了实验研究。

To develop a HPLC method for determination of deferiprone concentration in dialysate and to study the plasma protein binding rate of DFP.

目的建立测定透析液中去铁酮浓度的高效液相色谱法，观察DFP的大鼠血浆蛋白结合率。

The measurements of self-diffusion coefficient,spin-spin relaxation and interproton distance at 318 K suggest that N,N′-bis-α,ω- alkane propane diammonium dibromide (16-3-16) quasi-global micelles are formed in the dilute solution at a concentration of 0.26 mmol/L and the head groups are in a saw-toothed form staying at the surface of the micelle to overcome the strong electrostatic repulsion force.

从自扩散系数、横向弛豫和质子距离等NMR测定参数推测，在浓度为0.26 mmol/L（318 K）的N，N′-双-α，ω-丙烷溴化铵(16-3-16)溶液中形成了近似球形的胶束，胶束表面的带正电荷的铵基极性头呈锯齿状排列以减弱分子间静电排斥力的影响。

When the concentration of tested gases was 2000 mL/m3, chloroform, ethylene dichloride, formaldehyde and benzene did not interfere with the determination of acetone.

当各测试气体浓度均为2000 mL/m3时，三氯甲烷、二氯乙烷、甲醛和苯气体不干扰丙酮的测定。

In this paper,the synthesis of Talc/PMMA graft copolymer is studied,and the apparent kinetic test conducted by dilatometer. The effects of the initiator's concentration, the monemor's content, the talc's content and the reaction temperature on polymerization rates were investigated,and the apparent activation energy was determined.

文章主要研究了滑石粉／PMMA接枝物的合成和表观动力学测试，采用膨胀计法研究了接枝聚合反应表观动力学，探讨了引发剂浓度、单体用量、无机微粒滑石粉用量及反应温度等对反应速率的影响，并且测定了反应的表观活化能。

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！