吸光度

It can measure the concentration of oxalate in urine from the change of absorbances.

根据吸光度的变化可计算出尿液中草酸含量。

Methods The activity was determined by 3 - phosphoglycerate as substrate, the enolase and a series of coupling to 340 nm wave-length automatic analyzer in the determination of total activity could be derived.

PGAM活性测定采用3-磷酸甘油酸为底物，经烯醇化酶等一系列偶联，以340 nm波长在自动分析仪上测定，根据NADH吸光度变化可求出PGAM总活性。

Results show that photometric precision has great effect on analytical precision.

研究结果表明，吸光度重复性是近红外光谱仪器的一个重要指标，严重影响测试结果重复性。

Photometric precision is one of important parameters to control its quality during batch production.

在批量化生产过程中，需要严格控制吸光度重复性指标。

Results: The absorbance of plumbum presented a linear relationship in the range of 2.0-20.0 ng/ml (r=0.998 4), with the average recovery of 97.48%, RSD was 2.51%.

结果：铅元素在2.0～20.0 ng/ml范围内其吸光度与浓度呈良好的线性关系（r=0.998 4），平均回收率为97.48%，RSD=2.51％。

The left carotid artery was expose and placed over an ultrasonic flow probe.The brain flow volume was recorded with an ultra-sonic volume meter.The pursiness time of mice was observed to evaluate the effect of tianma xingnao capsule on cere-bral ischemia and anoxia.Methods The permeability of normal blood-cerebral barrier was investigated in mice.

目的 应用二道血流速度流量仪超声探头测定大鼠颈总动脉，以反映云南省昭通制药有限公司提供的天麻醒脑胶囊对脑血流量的影响；方法记录小鼠断头后张口喘气时间，观察天麻醒脑胶囊的抗脑缺血缺氧作用；小鼠尾静脉注射Evans溶液，测定脑组织Evans的吸光度以反映药物的血脑通透性。

The method is a traditional colorimetry and is direct ratio with the content of Pyrethrin pesticide and absorbency in a concentration area. The best absorbency wavelength is 505nm and it is ideal about the recovery.

本方法采用传统的比色法，在一定浓度范围内拟除虫菊酯类农药的含量与吸光度呈正比关系，最佳测定波长为505nm，样品的回收率比较理想。

With the 40/60 water/ethanol solution of standard Pyronine G as the sample, the limit of detection of 1.8×10〓 absorbanc is achieved.

采用标准吡啰红G的40/60水/乙醇溶液作样品，检测限达到1.8×10〓吸光度。

New absorbance ratio derivative method ; Simultaneous determination ; Phenol ; Resorcin

吸光度比值－导数光谱新方法；同时测定；苯酚；间苯二酚

Results With different concentration of sodium arsenite 0.5 ～ 5.0 μmol/L, the skin fibroblasts were markedly stimulated, and a dose effect relationship was observed.

结果与对照组比较，皮肤成纤维细胞经不同剂量的亚砷酸钠诱导后，吸光度值均有改变，存在剂量效应关系（P〈0.01）。0.5～5.0μmol／L浓度的亚砷酸钠对皮肤成纤维细胞有明显的增殖作用，而10μmol／L浓度的亚砷酸钠产生明显的毒性作用。

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。