Also , the precision of de estimated by sar is higher than that estimated by multiple aliquots 同时， d _ e值的测量精度普遍比多片法高。
3.
The reaction was allowed to proceed for 7 min at 30c , then 25 l aliquots was removed and spotted on whatman p81 paper , counted t 取25pi点于whatlnanpei强阳离子交换滤纸上，将滤纸置于液问瓶内，用beckman液问计数仪测定cpm值。
4.
This makes the sample easier to aliquot and has all the prerequisites for an interference - free qualitative and quantitative determination of the elements or compounds of interest 消解使样品处理更容易,具备了元素或混合物抗干扰定量和定性测定的所有先决条件
5.
Recently , single - aliquot technique has been paid close attention in osl dating , because of its higher precision , less quantity , as well as normalization is avoided in single - aliquot 在光释光测年中，单片技术以其用量少、不需要归一化、精度高等特点，近年来备受人们关注。
6.
Aliquots of cells were mixed 0 . 15 % mg / ml fb - 28 , and kept at 4c for 30min , fusion assays were conducted : fluorescence was measured immediately at regular time - points with fluorescence spectrophotometer with an excitation wave length of 560nm and emission wave length of 590nm . the percentages of membrane fusion was calculated . by monitoring fusion using the r18 assay , we found that the fluorescent brightener 28 influenced membrane fusion of virus and midgut epithelia cells 此外，采用分子探针r18 (荧光标记物)标记病毒囊膜，体外分离中肠上皮细胞，将标记的病毒粒子与离体中肠上皮细胞混合后保温，病毒吸附zh后，通过检测荧光的变化来监测病毒粒子与上皮细胞的融合。
7.
5 . the osl dating of 37 samples of loess in weihe river basin by sar and multiple aliquot methods , indicates that sar protocol appears to be applicable to loess and appropriately correcting for sensitivity changes within the regenerated curves , however , there are major difference between the irsl and post - ir osl de determinations that suggest that sensitivity changes relating to either ( or both ) natural signals may not be correctly monitored 同时，用单片再生剂量法测小干3ha的黄土细颗粒样品， slsl 、 irsl和post irosl测的年代在误差范围内基本相同，接近预估年代；对于3ha ? 10ha的黄土细颗粒样品，一般post osl测的年代更接近预测值；对于大于10ha的样品，一般irsl测的年代普遍太小，多数blsl年代也偏小，而p 。
8.
The cell extract aliquots were added by ammonium sulfate with 30 % , 40 % , 50 % , 60 % , 70 % , 80 % and 90 % saturation , separately . the activities of sod for the re - suspensions were detected after dialysis and centrifugation . it was found sod activity could be detected after the precipitation by ammonium sulfates with 30 % saturation or above , and the highest sod activity could be obtained by precipitation of ammonium sulfate with 80 % saturation Maltophilia276菌株细胞提取物中分别加入饱和度为30 、 40 、 50 、 60 、 70 ， 、 80和90的硫酸铵，经过透析、离心、重新悬浮后检测sod的活性发现：当硫酸铵的饱和度为30时，其活性可检测出sod活性，当硫酸铵的饱和度为80时，检测出的sod活性最大。
9.
In order to elaborate the app licability of osl to loess , especially single aliquot regenerative protocol ( sar ) , involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess , such explanations as light bleaching , preheat , anomalous fading , prior - ir exposure were investigated in this paper . for drawing adequate coarse grains from loess , quartz and feldspars , as well as loess , were etched by hydrofluoric acid and fluorosilicic acid . the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains 本文通过渭河流域全新世黄土的光晒退实验，地表黄土样品的d _ e值测定，细颗粒单片的预热、反常衰退、红外暴露实验，说明释光测年在全新世黄土中应用的可行性及单片再生剂量法( sar )在黄土细颗粒中的适用性；为了从黄土中分离出足够的粗颗粒，进行了纯石英和长石的氢氟酸( hf )和氟硅酸( h _ 2sif _ 6 )溶蚀实验，黄土粗颗粒石英溶蚀分离实验；通过细颗粒单片、多片的blsl 、 irsl和post - irosl ，热释光，及粗颗粒石英的blsl的年代测定，选择适于全新世黄土的释光测年方法，并建立了渭河流域全新世黄土的年代序列。
