查询词典 absorbance

A new method was developed for detection of the hydroxyl radical in Fenton reaction by bromocresol green oxidative assay. After oxidized by hydroxyl radical, the absorbance of bromocresol green is decreased apparently.

利用Fenton反应产生的羟基自由基与染料试剂溴甲酚绿(Bromocresol green， BG)发生氧化反应后使其吸光度值降低，建立了一种可间接测定羟基自由基的新方法。

The proposed method involves forming coloured ion-pair from ephedrine hydrochloride and bromothymol blue at pH 6.5 extracting the ion -pair thus into chloroform and measuring the absorbance chloroform solution at 414 nm.

根据盐酸麻黄碱在一定pH条件下，可与溴麝香草酚蓝反应生成稳定的络合物这一特性，选择414nm波长处测定其含量。

The determination of MD1 concentration in aqueous solution by using bromthymol blue indicator method is described and a linear relationship is observed between absorbance and solution concentration ranged in 10-300 mg/L.

介绍了溴百里酚蓝为指示剂测定水溶液中MD 1质量浓度的方法，在10～300mg/L范围内溶液吸光度与浓度之间有良好的线性关系。

Their relative molecular weights were 4785 and 4386 respectively. And their absorbance peaks were 210.5 nm and 225.4 nm respectively. The bovine and caprine placental peptides could improve immunosuppressive T lymphocyte transformation rate. The immunosuppressive lymphocyte transformation rates in groups with the bovine placental peptide of 1:1×10^3 and 1:1×10^4 (P.05)and with the caprine placental peptides of 1:1×10^2, 1:1×10^3 and 1:1×10^4 (P.01 )increased more remarkably than that in immunosuppression group.

结果 从牛和羊胎盘中成功提取出了胎盘肽，其相对分子质量分别为4785和4386；其最大吸收峰分别为210.5和225.4nm；牛和羊胎盘肽均可使顺铂抑制的兔外周血T淋巴细胞的转化率显著提高，其中牛胎盘肽以1：l×10^3、1：l×10^4 2组吸收度明显高于抑制组(P.05)；羊胎盘肽以1：1×10^2、1：1×10^3和1：1×10^3 3组效果最为明显(P.01)。

These results indicate that the wavelengths at adsorbing edge are affected by the content of cerous nitrate and the maximum absorption wavelength is about 481nm when the mole ratio of Ce/Ti is 1.0.For higher dosage of Cerium,the absorbance edge shifts to blue slightly.

结果表明，硝酸铈加入量影响催化剂的吸收带边，随用量增加，吸收带边红移至481nm(Ce/Ti=1.0，摩尔比)，继续增加用量，吸收带边轻微蓝移。

This article microbiofilmtechonology fermention colibacillosis ASP-311 technology, to the strains to fumaric to slfia to fermetation asparate; qsdhmm oluv in movingbed emulsifications, decolourization decolourization of temperature, time, as well as the pH value of l - omniberaing conditionson decolouring asparate, the resulting effect of: movingbed or by 1.0% concentration, temperature is 60 700℃ decolourization, 0.5h, decolourization time for the pH of 6, in this condition, oluv of 3.2% absorbance at decolouring.

毕业论文翻译（本文生物学术语多，切勿使用在线翻译）本文利用微生物发酵培养技术，以大肠杆菌ASP-311为发酵菌株，以富马酸为底物来发酵生产天冬氨酸；研究了发酵液中活性炭的使用量、脱色的温度、脱色的时间以及pH值等各种条件对L-天冬氨酸脱色效果的影响，最终得出：活性炭的浓度为1.0%，脱色温度为60℃，脱色时间为0.5h，pH为6，在此条件下，发酵液的吸光度为3.2%，此时的脱色效果达到最佳。

When end surface is neglected, the reflective energy will return to the filament efficiently if the filament is at the centre axis of the columniform lamp shell. 3 Compared with the straight tungsten filament that has a smooth surface, the helical one obtains higher absorbance which can achieve 0.6~0.7 under the actual screw pitch measurement.

当灯的管径为10 mm，而灯丝外径为1.5 mm时，节能可达12%到13%。2）对圆柱形灯外壳，在不考虑端面影响时，光源的灯丝若处于外壳的中心轴上，则反射的能量会有效地返回灯丝。3）螺旋结构的灯丝比表面光滑的直钨丝有更高的吸收率，灯丝绕成螺旋后在现行的螺距尺寸下吸收率能达到

PCC 7942 by Triparental Conjugative Transfer, and detected expression of α-α. The heavy metal selective absorbance analysis indicated that these transgenic cyanobacteria inclined to absorb firstly Cd〓 and Pb〓 in water.

通过对重金属离子的选择吸收性多方面检测，结果表明在用来吸收水体中对人体有害的金属离子方面，转α-α基因藻有很强的选择吸收性。

The dispersity was examined by determining the degree of retention of carbon black on filter paper and the stability was examined by measuring the absorbance of the decantate after separation by centrifugation.

在水介质中利用过硫酸铵对炭黑表面进行氧化改性，考察了炭黑种类、氧化剂含量、反应时间和温度等参数对改性效果的影响。

The Sulfhydryl content of glycinin and β-conglycinin are increased with the increasing of pressure and prolong of processed time; Fluorescence analysis reveals that glycinin has larger hydrophobic regions while processed by higher pressure; But to β-conglycinin, the hydrophobic regions change according to different pressure; The changes of ultraviolet difference spectra of pressured glycinin show that amino acid residues which have ultraviolet absorbance are exposed on the surface of the protein molecule with its unfolding by high pressure denaturation as well as the exposure of sulfhydryl and dissulfide groups.

处理压力的升高和时间的延长都将使大豆豆球蛋白和β-伴大豆球蛋白的半胱氨酸残基暴露，巯基含量增加。荧光分析表明，经压力处理后大豆豆球蛋白表面疏水区域增多：而对于β-球蛋白，在低压作用下，其疏水区域减少，在高压作用下，其疏水区域增加，但在过高的压力下，β-伴球蛋白中的疏水区域又呈现减少的趋势。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。