查询词典 absorbance

Absorbance ratio derivative method was developed for the simultaneous determination of glyoxal and glyoxylic acid.

利用比值导数波谱法同时检测乙二醛和乙醛酸，为GLY催化氧化过程的实时、快速分析提供了新的手段。

Extraction of edible red pigmengt from solanum nigrum fruit by optimum seeked process conditions, determined single factor condition, designed orthogonal layout, and measured absorbance at 527nm wavelength, weighed up the pigment extracting effect and stability. The most favoured extracte conditions were determined as follows: The extracting regent was citric acid hydrotropic solution, pH was 1.72, the quantities of added sample to the solution was 3.35g/100mL, the temperature was 60℃, the extracting time w...

以成熟的龙葵果为原料提取食用红色素，通过优化工艺、确定单因素条件、设计正交试验，以527nm波长的吸光度值衡量色素提取效果和稳定性；最优化的提取条件为：柠檬酸水溶液提取剂pH为1.72，样品加量3.35g/100mL，提取温度60℃，浸提时间60min；龙葵红色素提取液长期接触光、空气和Fe3+，稳定性下降，因此，在提取、干燥和储存时要尽量避免长时间接触光和空气、避免与铁制容器直接接触。

Iodination of acetone ; absorbance ; software ; graphically show

丙酮碘化；吸光度；软件；图形显示

Furthermore, the characteristics of structural phase transition were investigated with the infrared absorbance spectra methid.

进一步用红外吸收谱研究了体系的结构变化特征。

The present study employed synchrotron-based infrared microspectroscopy to establish the correlation of kinetic physisorption between wax molecules and oral cavity cells/ tissues for diagnosing oral cavity cancer. The absorbance of v CH2 and v CH2 of waxed sample in the spectral range of 3000-2800 cm^(-1) enabled to be a signpost of wax remained onto the cells or tissues during the kinetic dewaxing procedures.

本研究以同步辐射红外显微光谱为基础的红外动力学方法，探讨有机蜡对人类口腔细胞组织的物理吸附能力与细胞组织癌化的关连性，藉由量测有机蜡残留在细胞组织上动力学时间作为判定细胞组织癌化的依据。

Results: Diacetyl monoxime solution of acetic acid and to without acetic acid DMA color liquid, transparent tube and the Brown tube of absorbance determination, 30 min to put average drop of 6.80%, 1.30% and 1.44%, 0.98%; 60 min put average drop 19.8%, 1.92% and

结果：二乙酰一肟乙酸溶液与无乙酸的DMA显色液，其透明管与遮光管测定的吸光度，放置30 min平均下降了6.80%、1.30%与1.44%、0.98%；放置60 min平均下降了19.8%、1.92%与2.49%、1.60%。

In the medium of ammonia water and ammonium chloride trace copper can sensitively catalyze hydrogen peroxide(H2O2) oxidizing the fading of the orcein. On the basis of the principle, the uncatalytic and catalytic system solutions are heated for 11.5 mm in boiling water and then the absorbance is measured at 582 nm.

在NH3H2O-NH4Cl介质中，铜能灵敏地催化过氧化氢氧化地衣红褪色，利用这一原理，将非催化反应体系与催化反应体系在沸水中加热11.5min，在波长582nm处测定吸光度。

Relationship between different structures levels of TiO_2/PANI composite particles and optical property, protons absorbance were discussed.

分析讨论了复合微粒材料不同层次的结构特征及其与光学特性和光吸收间的关系。

Mm, 5 μm and a UV detector. Elution was performed at a flow rate of 1 mL/min, with a gradient of methanol-acetonitrile-water starting at 80∶10∶10, increasing linearly to 86∶10∶4 in 35 min, then returning to the initial conditions in 5 min. Elution of phenacyl esters was monitored by absorbance at 254 nm. Pentadecanoic acid was used to be an internal standard.

分析所用色谱柱为ZORBAXSB C18柱，以十七酸作为内标，甲醇-乙腈-水为流动相，采用梯度洗脱(梯度洗脱程序为甲醇-乙腈-水由80∶10∶10在35 min内线性变化到86∶10∶4，然后在5 min内恢复到起始比例，流动相流速为1 mL/min)，通过测定苯乙酰甲酯在254 nm处的吸光度值来测定脂肪酸含量。

In Chapter 3, the separation of Fe〓, Co〓, Ni〓, Zn〓, Cu〓 by CE in the presence of imidazole or phenylamine as UV-absorbing background electrolyte and α-hydroxybutyric acid as the complexing agent with indirect UV absorbance was investigated.

在第三章，研究了以咪唑或苯甲胺为背景吸收电解质，α-羟基异丁酸为络合剂，采用毛细管离子电泳间接紫外法测定了镍矿石中Ni，Co，Cu的含量。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。