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1)  Argon recovery rate
氩提取率
2)  combined washer
提高提取率
3)  extraction rate
提取率
1.
Study on increasing extraction rate for potato starch;
提高马铃薯淀粉提取率的研究
2.
Discussion and study on influential factors of extraction rate of RNA by ammonolysis
影响氨解法RNA提取率因素的探讨与研究
3.
Study of the impact of pretreatment on arecoline extraction rate
槟榔预处理方式对槟榔碱提取率的影响
4)  extraction yield
提取率
1.
The effects of different temperature, time and the ratio of solid to solution on the extraction yield of Ganoderma lucidum polysaccharides (GLP) were optimized with response surface methodology.
本研究采用响应曲面法对影响GLP提取率的三个主要影响因素即提取温度、提取时间和液固比进行了优化。
2.
The results showed that the stability of pure solanesol is not very good,washing of the tobacco leaves is good to improving the quality and extraction yield of the tobacco extraction,the .
本文采用硅胶柱层析、重结晶等操作,从烟叶粗提物中制得精品茄尼醇;利用1HNMR鉴定了结构;研究了茄尼醇精品及粗品的稳定性;考察了提取方法、提取溶剂、提取时间、溶剂液固比等对烟叶中茄尼醇粗品提取率的影响。
3.
5g/L,and the extraction yield of protein was 63.
5 g/L,蛋白质提取率可达到63。
5)  extraction yield
提取得率
6)  yield [英][ji:ld]  [美][jild]
提取率
1.
Analysing the water extraction and alcohol precipitation, the technologies of ethylalcohol circulating and ultrasonic extracting these three different methods, all the results showed that: the yield is higher with the technologies of ethylalcohol circulating than the others, and it is simple and efficient.
以化香树果序为原料,对水提醇沉法、乙醇回流提取法、超声提取法等三种方法提取黄酮工艺过程进行了研究,结果表明乙醇回流提取法具有提取率高、操作简便、成本低等特点。
2.
Material balances calculation and track testing of ephedrine production in a Xinjiang pharmaceutical factory were carried out with the results showing that the total yield was 41.
对新疆某厂麻黄碱生产工艺进行了物料衡算和跟踪测试 ,结果显示麻黄碱总提取率为 41。
3.
The effects of alcohol concentration, extraction time, extraction temperature, material-solvent ratio, and their effects on the yield of total polyphenols were studied.
以余甘子干粉为原料提取余甘子多酚,比较了乙醇浓度、浸提时间、温度、pH、料液比及提取次数对总多酚提取率的影响,并以乙醇浓度、浸提时间、温度、pH为考察因素,采用RSA响应面分析法,确定了余甘子多酚提取的最佳工艺参数,即乙醇浓度为60%,浸提温度50℃,浸提时间4h,pH3。
补充资料:氩39-氩40法测年
分子式:
CAS号:

性质:将含钾样品放入核反应堆中接受快中子照射,40K核被打进一个中子,而后放出一个质子,形成39Ar,用质谱计测定被照射样品的40Ar/39Ar比值,代替常规钾-氩法中40Ar/40K比值,从而计算出样品年龄的方法,计算公式如下:t=λ-1ln(1+J•40Ar/39Ar)。式中J=39Ar/40Ar•λ/λkΔT∫φ(ε)σ(ε)dε是样品照射持续的时间,Ф(ε)是能量为ε时的中子通量,σ(ε)为39K(n,p)39Ar的反应截面,实验中用一已知年龄(ts)的标准与待测样品一块进行辐照,由下式求得J值:J=(eλt-1)/(40Ar/39Ar)。此方法解决了过去钾、氩分别由不同方法测定所产生的不同误差使年龄精度较低的弊端;同时由于照射后样品氩的释放可采用阶段加温方法,对一个样品便可获得一系列的表面年龄,最终得到代表矿物或岩石结晶的稳定坪年龄;或由等时线法处理得到样品的年龄、认识外来氩的混入状况。

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