吸光度

最后，根据工作曲线将吸光度转换成蒽醌浓度。

Then the absorbance is calculated as concentration of AQ from working curve .

吸光度比值K系数法是一种可以同时测定多元混合组分的新的分光光度法。

Absorbance ratio K-factor spectrophotometry is a new method to determine mixed components system .

C（60）在几种溶剂中紫外吸光度的负热效应

The Negative Temperature Effect of UV Absorbance on C_ ( 60 ) in Different Solvents

pH指示剂吸光度比法测定喷昔洛韦钠原料药含量

Determination of Penciclovir Sodium by pH - Indicator Absorbance Ratio Method

样品可不经分离，在选定波长下直接测定两者的吸光度，根据K和ΔA值便可分别求出两者的含量。

The sample was determined directly at the selected wavelengths without separation .

果葡糖浆的DE值越高，吸光度也越大。

And higher of the DE value , the greater of the absorbency .

紫外吸光度（UV法）在水环境监测中的应用

Application of UV method in the water environmental monitor

在富氧环境培养的各组细胞之间荧光吸光度值差异无统计学意义（P＞0.05）。

There was no significant difference among the four groups of cells when they were exposed to normoxia ( P > 0.05 ) .

滤液吸光度的标准不确定度（U）0.009；

The filter liquor standard uncertainty U is 0.009 ;

基于紫外吸光度的在线水质COD测量仪设计

Design for On-line COD Instrument Based on Ultraviolet ( UV ) Intake Degree

各组间比较CO的吸光度有统计学意义（P0.05）。

Comparing the absorbance of CO there was statistically significant difference in each group ( P0.05 ) .

分光光度计测定吸光度表明所制备的HA凝胶是一种可降解的生物材料。

It was shown in the spectrophotometer test that HA gel was a degradable material .

结果：病例组抗DNA酶B滴度、TNF-α吸光度都高于对照组，差异有显著性。

Results : In case group , anti-DNase B antibodies titre and absorbency of TNF - α is significantly higher than in control group .

四甲基偶氮唑盐（MTT）法测定细胞株吸光度（A）值以判定其增殖活性；

The proliferative activity of cells were measured with the method of MTT .

结果表明：全血培养上清吸光度的测定同MTT比色法一样能够反映出淋巴细胞转化情况，该法在试验可重复性方面明显优于MTT法。

The repeatability of the whole blood method is better than the MTT .

各时间点阳性细胞细胞周期素E平均吸光度值之间的两两比较采用q检验。

Comparisons in the mean absorbance in cyclin E at each time-point between each two were done by q test .

主要指标吸光度（OD值）、凋亡率。

Main Outcome Measures Optical density and the rate of apoptosis .

据此，本文以维多利亚蓝B为标记物，根据其在波长616nm处吸光度下降的程度，可用于定量测定DNA。

Based on this fact , a novel method for the determination of DNA at 616 nm using victory blue B as a labeling agent was developed .

通过染料水溶液受到辐照前后的紫外可见光谱的分析，以及化学需氧量、吸光度和溶液pH值的变化，研究其辐射降解脱色特性。

The change of absorption spectra and pH value are described in the paper as well as the degree of decoloration and COD removal .

采用35个汽油实际样本数据，建立了利用汽油的近红外光谱光谱吸光度预测汽油辛烷值的BP人工神经网络模型。

35 near-infrared spectroscopy data , were used to construct the BP artificial neural network model for the prediction of gasoline octane number .

光镜下可见治疗组AS病变较模型组明显减轻，且PPARγ蛋白平均吸光度值降低（P＜0.01）。

The average optical density of PPAR γ protein expression was decreased in rosiglitazone group ( P < 0.01 ) .

提出了运用吸光度比值-导数光谱法同时测定Cr（Ⅲ）与Cu（Ⅱ）含量的新方法。

In the present paper , an absorbance ratio-derivative method for the simultaneous determination of copper (ⅱ) and chromium (ⅲ) was proposed .

该仪器采用嵌入式微机系统实时采集与计算由紫外分光扫描系统得到的多个紫外吸光度，运用反相传播（BP）神经网络建立紫外吸光度和COD的数学模型。

This instrument used embedded microcomputer system to collect and calculate the real-time multiple ultraviolet absorbance obtained by ultraviolet scanning system .

标准管油烟含量为0-100μg围时，吸光度与油烟量间呈良好的线性关系（相关系数r为0.994-0.999）；

There is good linear correlation between the absorption and the content ( the correlation coefficient from 0 . 994 to 0 . 999 ) .

通过偏光实验及一定浓度双水相吸光度的测定，研究了SDS/CTAB/H2O/NaBr混合系统双水相对罗丹明B和亚甲基蓝的萃取作用。

This study was about the extraction of Rhodamine B and methylene blue in the aqueous two phase system of SDS / CTAB / H 2O / NaBr mixture .

用图像分析仪检测窦房结内P细胞、T细胞、心房肌细胞、胶原纤维胞浆吸光度（A值）。

The P cells and T cells inside the sinoatrial node , atrial muscle cells and absorptance ( A ) value of cytoplasm in collagen fibers were detected with image analyzer .

随着阿霉素剂量增加，MTT显示MGC-803细胞的吸光度值逐渐降低。

MGC-803 cell number was significantly decreased with increasing dose of ADM.

它基于在稀磷酸溶液中，依来铬青R与溴酸钾的反应受亚硝酸根催化而使吸光度降低。

It is based on the decrease in absorbance of the reaction eriochrome cyanine R with potassium bromate in dilute H3PO4 which is catalyzed by nitrite .

应用四氮唑蓝比色（MTT）法检测各孔的吸光度值并计算出肿瘤细胞对所试药物的敏感率。

The absorption values of 96 well were detected and the sensitive rates were calculated with MTT methed .

采用MTT法观察莪术瓜蒌汤含药血清对PGLH7细胞增殖的抑制作用，其中高剂量血清组与对照血清组之间的吸光度差异有显著统计学意义（P＜0.01）；

There was remarkable difference in the inhibitory rate between 10 % high dose drug-bearing serum and the control serum ( P < 0.05 ) .