浓度测定

The experimental results have shown that ofloxacin in HCl (0. 1 mol/L)solution has maximum absorptivity at 293nm. Good linear correlation is seen between concentrations of ofloxacin in the range of 18 μg/ml and their absorptlvity. The results of experiment of stability show that light and heat have almost no effect on ofloxacin otic Solution. The validity is two ...

实验结果表明氧氟沙星用盐酸作溶剂在紫外区有最大吸收，最大吸收波长为293nm，在测定范围内（1－8μg／ml）浓度与吸光度呈线性关系；药用辅料对浦耳液中氧氟沙星的含量测定无干扰；稳定性试验表明光、热对氧氟沙星滴耳液（pH＝6－7）的含量影响不大，根据加速试验和室温留样试验可将本品有效期定为二年。

Four weeks later, the 24 h oxaluria concentration was measured, the apoptosis index of renal tubular epithelial cells was detected with TUNEL method, and Ca2+ fluorescence intensity of cells of renal proximal tubules was determined by flow cytometry using Fluo-3/AM staining.

测定各组大鼠24 h尿草酸浓度；TUNEL技术检测肾小管上皮细胞凋亡指数；应用Flou-3/AM荧光指示剂测定大鼠肾近曲小管细胞内Ca2+的荧光强度。

In the rapid ampoule determination of low concentration iron in water phenanthroline is used as developing agent.

测定条件；油田水分析；中低浓度；吸光度；准确度；铁含量；快速测定法；铁水样；目视比色法；灵敏度

Traction and by adoption of spectrophotometry to direct measurement of concentration of picric acid in desulfurized solution, a new method for determination of the concentration of picric acid in desulfurized solution.

摘 要：通过苦味酸与结晶紫缔合，利用环己烷萃取，采用分光光度法直接测定脱硫液中苦味酸的浓度，从而建立了1种测定脱硫液中苦味酸的新方法。

The test showed that the recovery yield of marked compound in desulfurized solution was 103.3%, it was indicated that impurity in the mixed system had smaller influence on determination, the method is more accurate in determination of picric acid in desulfurized solution.

经过对脱硫液进行加标回收试验表明，加标回收率为103.3%，说明混合体系中杂质对测定干扰小，该方法对测定脱硫液中苦味酸的浓度比较准确。

A modified method bibed on the classical target factor analysis,refeed to as calibration working mains-TFA,waS used to perform a simultaneous determination-of a single or several mixture samples of food pigment s by confirming a corresponding calibration working matrix.

采用由目标因子分析法改进形成的校准工作矩阵法，对多组分食用合成色素混合体系进行同时测定。该法通过确认一个相应的校准工作矩阵即可对单个或多个混合样品的各组分进行同时直接测定。对七种三组分食用色素样品（各组分浓度在4.32～21.00μg／ml）的分析，各组分的回收率在97.93％～104.80％之间。与传统的目标因子分析法比较，此法特别适用于定性组成及定量范围基本清楚的混合样品的例行分析

Ve schizophrenic inpatients will be enrolled into the 6-week, randomized, double-blind trial of sarcosine monotherapy (1000~3000 mg/day, N=75) vs. risperidone (2~6 mg/d, N=75). We will measure clinical efficacy and side effects biweekly during the treatment. At the beginning and the end of the trial, we will also measure cognitive function (e.g. intellect, attention, memory, executive function), serum amino acids, expressions of mRNA (by realtime quantitative RT-PCR) and protein of NMDA-related genes (such as SHMT2, AMT, PSAT1, ASCT1, and serine racemase) in peripheral blood lymphocytes.

第一部份将收案150位未曾治疗之精神分裂症住院患者，以双盲方式随机给予六周sarcosine (1000-3000 mg/day，N=75)或risperidone (2-6 mg/day，N=75)治疗，我们将每两周评估临床疗效与安全性，并在研究开始及结束时，评量认知功能(智能、注意力、记忆力、执行功能)并测定血清中glycine或D-serine浓度以及SHMT2、AMT、PSAT1、ASCT1、serine racemase等基因於周边淋巴球之mRNA (以realtime RT-PCR测定)与蛋白质表现量。

The detection and quantification limits of scutellarin obtained were 0.28 mg/L and 0.93 mg/L, respectively.

野黄芩苷的质量浓度采用高效液相色谱进行离线测定，得到的检出限和定量测定下限分别为028 mg/L和093 mg/L，日内和日间精密度分别为1.7%和3.6%，平均加标回收率为98.3%。

The binding rate of scutellarin to human plasma proteins was determined by equilibrium dialysis method.

用HPLC法测定血浆和透析液中野黄芩苷的浓度，用平衡透析法测定血浆蛋白质结合率，蛋白质结合率按B%=×100%计算。

Methods Modified Columbia chocolate agar was compared with blood agar staphy stick for the primary isolation of Hi from sputa. The sensitivities of 20 antibiotics to Hi were determined in vitro by KB method and MICs of 12 antibiotics were determined by broth microdilution method. The clinical characteristics of 92 cases with lower respiratory tract infection by Hi were analyzed.

比较改良哥伦比亚巧克力琼脂与血琼脂加金黄色葡萄球菌划线对Hi的分离率；以Kribry-Bauer法测定Hi对20种抗生素的敏感性，以肉汤微量稀释法测定12种抗生素对Hi的最小抑菌浓度；分析92例Hi下呼吸道感染的临床特点。

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！