放射性碳年代测定法涉及到了化学分析,与文物中残留的有机物成分所释放的放射性碳的含量测定有关。
Radiocarbon dating had to do with chemical analysis, something to do with measuring the amount of radiocarbon that's left in organic stuff.
碳的年代测定工作是将碳14(碳处于这种状态并不常见,也不稳定)与碳12(碳的常见状态)的含量进行对比。
Carbon dating works by comparing the amount of carbon 14, which is a less common and less stable form of carbon, to the more abundant carbon 12.
采用铂催化法对过氧化氢进行自催化处理,非散射红外吸收法测定过氧化氢中的总有机碳含量。
Methods After hydrogen peroxide products were catalyzed by platinum, total organic carbon in it was detected by NDIR.
用自制碳钢材蜗代替瓷材蜗,测定磷石膏制水泥生料中的碳含量,经济实用,简便、快速。
Using self-made carbon steel crucible instead of poroelain crucible is an economical, practical, simple and raoid way to determine the carbon content in cement raw meal with phosphogypsum.
用烘箱加热法、油浴法、沸水浴法测定橡胶树不同器官的有机碳含量。
Three methods including oven-heating, oil bath, and boiling water bath were used to determine organic carbon content in different organs of rubber trees.
介绍了应用DV - 4光电光谱仪,仅用一种测定条件,测定高合金钢中碳、硫、磷、锰、硅、铬、镍、钼、钒、钨、钛、铌、铝元素的含量的方法。
The method of measuring c, s, p, Mn, Si, Cr, Ni, Mo, V, W, ti, Nb, Al element content by DV-4 photoelectric spectroscope on one condition is introduced.
采用高温气相色谱法测定橡胶防护蜡中的正构烷烃和非正构烷烃的碳数及含量。
Carbon distribution and content of normal alkane and isoalkane in rubber waxes are measured by using high temperature gas chromatography.
利用有效碳数法可以设计农药分析实验方案和在无标样的情况下测定农药杂质含量。
The effective carbo number method can be used in designing experimental methods for pesticides analysis and pesticide impurities analysis without standards sample.
通过对宁夏固原不同植物过程土壤剖面有机碳含量和含水量的测定和分析。
The contents of organic carbon and water of different plant processes in soil profile of NingXia GuYuan are measured and analyzed.
目的建立用涂碳式聚氯乙烯膜盐酸苯海拉明电极测定盐酸苯海拉明片含量的方法。
Objective to establish an accurate method to determine diphenhydramine hydrochloride by coated carbon PVC membrane selective electrode.
采用TOC 5000A总有机碳仪测定了福建主要森林类型土壤溶解有机碳(doc)的含量,分析了土壤溶解有机碳与土壤因子的关系。
The dissolved organic carbon (DOC) of forest soil in Fujian Province was tested with TOC 5000a organic carbon Instrument. The relationship between soil DOC and soil factors were analyzed.
目的:用毛细管气相色谱法测定海狗油中二十碳五烯酸(EPA)、二十二碳五烯酸(DPA)和二十二碳六烯酸(DHA)的含量。
Objective: To determine the contents of eicosapentaenoic acid (EPA) , docosapentaenoic acid (DPA) and docosahexaenoic acid(DHA)in harp seal oil by capillary gas chromatography.
方法:采用铂催化法对过氧化氢进行自催化处理,非散射红外吸收法测定过氧化氢中的总有机碳含量。
Methods: After hydrogen peroxide products were catalyzed by platinum, total organic carbon in it was detected by NDIR.
方法:在香烟中分别添加了天然抗氧化剂、纳米材料、硅藻土、活性碳及抗氧化剂组合物,并用电子顺磁共振仪(esr)对香烟烟气自由基的含量进行测定。
Methods: Free radical content in cigarette smoke, in which were added natural antioxidant, nanometer material, diatomite, activated carbone and antioxidant-activated carbone, were determined by ESR.
通过内配碳球团的热风穿流干燥实验,研究了不同热风温度、流速、球团初始湿含量以及生球尺寸对干燥过程的影响规律,并对球团的爆裂温度进行测定。
The influence of different parameters on drying process is studied in hot air cross-flow experiment, which includes air temperature, air speed, initial moisture content and size of raw pellets.
通过内配碳球团的热风穿流干燥实验,研究了不同热风温度、流速、球团初始湿含量以及生球尺寸对干燥过程的影响规律,并对球团的爆裂温度进行测定。
The influence of different parameters on drying process is studied in hot air cross-flow experiment, which includes air temperature, air speed, initial moisture content and size of raw pellets.
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