Standard test method for trace metals in gas turbine fuels by atomic absorption and flame emission spectroscopy 原子吸收和火焰发散分光光度法测定气轮机燃料中痕量金属的标准试验方法
Standard test method for determination of trace metals in petroleum coke by wavelength dispersive x - ray fluorescence spectroscopy 利用波长色散x射线荧光光谱学测定石油焦中痕量金属的标准试验方法
Standard practice for preparation of water samples using reductive precipitation preconcentration technique for icp - ms analysis of trace metals 用微量金属的icpms分析法使用快速还原浓缩技术对水样品制备的标准实施规程
Experimental results show that desorption of particulate trace metals by waters of high salinity is limited due to dynamical processes . 6 另一方面，因受到受到动力学因素控制，高盐度水对固相中金属的解吸作用是有限的。
Zinc occurs naturally in the earth . in the air and in the foods you eat . it is the second most common trace metal , after iron , naturally found in the body 锌是自然存在于地球，空气及日常的食物中，除铁外，锌亦可从人体中发现，其含量仅次于铁。
A human hair co ists mainly of a protein called keratin . it also contai 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。
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。
All about your hair 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。
Design and preparation of novel ion exchange fiber , or functionization of activated carbon fiber , and application of these materials in energy storage and exchange , or in removal of trace metal ions 新型离子交换纤维研制、活性炭纤维功能化、以及上述材料在储能和高纯试剂应用开发方面选择研究课题。
7 . variation of fluxes for several dissolved trace metals was discussed , using a simple model based on the distributions of spm , salinity and simulating experiments in the changjing estuary , and the results show that dissolved flux throu 结果显示，溶解态cu和zn在长江口低盐度区趋于部分混合保守性，其他三种微量金属都不同程度呈现出全盐度范围内的溶出行为。
