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- trace metal impurities 痕量金属杂质
- Standard Test Method for Trace Metallic Impurities in High Purity Copper by High-Mass-Resolution Glow Discharge Mass Spectrometer 用高质量分辨率辉光放电质谱仪对高纯度铜中痕量金属杂质的试验方法
- Standard Test Method for Trace Metallic Impurities in Electronic Grade Aluminum-Copper, Aluminum-Silicon, and Aluminum-Copper-Silicon Alloys by High-Mass-Reduction Glow Discharge Mass Spectrometer 用高质量减少辉光放电质谱仪测量电子级铝铜、铝硅和铝铜硅中微量金属杂质的标准试验方法
- The mobility of the trace metal elements was different in HTA and CFBCA. 不同燃烧方式产生的煤灰中 ;微量重金属元素的浸取率不同 .
- A method for determination of 9 metal impurities in high purity silicon tetrachloride was developed. 本文对钛厂回收副产物高纯四氯化硅中的9种金属杂质进行了测定。
- A large amount of defect sites and metal impurities existed in CNF which could be effectively removed by high temperature treatment. 实验结果表明,化学气相沉积法合成的CNF含有较多金属杂质及表面缺陷位;
- FAAS method was applied to the determination of metal impurities(in eluding Zn,Na,Pb,K, Fe,Ca and Mg)in high purity lithium carbonate. 采用火焰原子吸收光谱法测定了高纯碳酸锂中多种杂质元素(包括锌、钠、铅、钾、铁、钙及镁)的含量。
- Chelation ion chromatography is suitable for the determination of trace metal ions in complex matrices. 螯合离子色谱可以对复杂基体中的痕量金属离子进行测定。
- Senesi, N. and F.Sakellariadou（1993）Trace metal ion binding by humic acid in marine and coastal sediments. 洪富文黄菊美林光清杜清泽陈永修林照松（2000）原生阔叶林分改建人工林对土壤养分的影响。
- Has the magnetic device, may magnetize the water quality and is not been easy the metal impurities to enter the boiler, avoids the boiler scale production. 带磁性装置，可磁化水质和令金属杂质不易进入锅炉，避免水垢产生。
- A human hair consists mainly of a protein called Keratin. It also contains some moisture and the trace metals and minerals found in the rest of the body. 人类的头发主要由一种叫角朊的蛋白质组成，并含有水分及在身体其他部分也可找到的微量金属和矿物质。
- Using microanalytical method, experiments are made on determina-tion of trace metal elements in organic extracts of carbonate rocks. 作者采用微量分析技术,对碳酸盐岩有机抽提物中痕量金属元素的测定进行试验。
- In this paper, a new method for determination of trace metal ions in complex matrices by chelation ion chromatography has been developed. 发展了应用螯合离子色谱法分析复杂基体中痕量金属离子的新方法。
- Can significantly improve nitrogen, phosphorus and potassium utilization of chemical fertilizers, the activation of trace metal elements. 可以明显提高氮、磷、钾化学肥料的利用率及螯合活化微量金属元素的作用。
- ICP-AES Determination of trace Metals in Umbilical Cord and blood Yang Qunzhi. 脐带和脐血中微量金属元素的ICP-AES测定
- Biochelation plays an important role in the bioavailability of trace metals. 微生物的螯合作用对微量金属营养元素生物有效度起非常重要的作用;
- KRS-5 single crystals have been grown in three kinds of atmospherest air, Ar and Ar+I_2. The scattering centers in crystals were examined and the metal impurities and oxygen content of the crystals were analysed. 在空气、流通氩气和Ar+I_2混合气体等气氛条件下生长出KRS-5单晶,检查了晶体中的散射,分析了晶体中金属杂质和氧含量。
- It is necessary to determine the bioavailability of trace metals in the system. 对厌氧生物处理系统进行微量金属营养元素生物有效度的检定是非常必要的;
- Auger electroa spectrometer (AES) and X-ray photoelectron spectrometer (XPS) were used to analyse the component distribution and depth distribution of the metal impurities on the probe surface layer. 利用俄歇电子谱仪(AES)和X射线光电子谱仪(XPS)分析了探针表面层的金属杂质组份分布及深度分布。
- There are two types of drinking water filters, conventional filters that remove chlorine and any metal impurities that may be in your water and a special filter system that employs reverse osmosis. 有两种类型的饮用水过滤器，一种是传统过滤器，会去除氯和水中的任何杂质，另外一种特殊的过滤器则采用反渗透过滤。
