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aliquot adj.【數學】除得盡的。n.除得盡的數。

alison

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 本文通過渭河流域全新世黃土的光曬退實驗,地表黃土樣品的d _ e值測定,細顆粒單片的預熱、反常衰退、紅外暴露實驗,說明釋光測年在全新世黃土中應用的可行性及單片再生劑量法( sar )在黃土細顆粒中的適用性;為了從黃土中分離出足夠的粗顆粒,進行了純石英和長石的氫氟酸( hf )和氟硅酸( h _ 2sif _ 6 )溶蝕實驗,黃土粗顆粒石英溶蝕分離實驗;通過細顆粒單片、多片的blsl 、 irsl和post - irosl ,熱釋光,及粗顆粒石英的blsl的年代測定,選擇適于全新世黃土的釋光測年方法,并建立了渭河流域全新世黃土的年代序列。

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菌株細胞提取物中分別加入飽和度為30 、 40 、 50 、 60 、 70 , 、 80和90的硫酸銨,經過透析、離心、重新懸浮后檢測sod的活性發現:當硫酸銨的飽和度為30時,其活性可檢測出sod活性,當硫酸銨的飽和度為80時,檢測出的sod活性最大。

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 同時,用單片再生劑量法測小干3ha的黃土細顆粒樣品, slsl 、 irsl和post irosl測的年代在誤差范圍內基本相同,接近預估年代;對于3ha ? 10ha的黃土細顆粒樣品,一般post osl測的年代更接近預測值;對于大于10ha的樣品,一般irsl測的年代普遍太小,多數blsl年代也偏小,而p 。

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,采用分子探針r18 (熒光標記物)標記病毒囊膜,體外分離中腸上皮細胞,將標記的病毒粒子與離體中腸上皮細胞混合后保溫,病毒吸附zh后,通過檢測熒光的變化來監測病毒粒子與上皮細胞的融合。

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 在光釋光測年中,單片技術以其用量少、不需要歸一化、精度高等特點,近年來備受人們關注。

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 消解使樣品處理更容易,具備了元素或混合物抗干擾定量和定性測定的所有先決條件

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點于whatlnanpei強陽離子交換濾紙上,將濾紙置于液問瓶內,用beckman液問計數儀測定cpm值。

Also , the precision of de estimated by sar is higher than that estimated by multiple aliquots 同時, d _ e值的測量精度普遍比多片法高。

Multiple aliquot sample harvester 多用等分試樣標本采集器