Leaching characteristics of nitrogen and phosphorus in treated paddy fields with chicken manure;
施用鸡粪稻田土壤氮磷养分淋洗特征研究
The influence of the leaching on the paddy soil nitrogen mineralization;
淋洗对稻田土壤氮素矿化的影响
The leaching experiments indicate that the elution eficiency of nitrobenzene from the soil by the above surfactants are not greater than distilled water.
淋洗实验结果表明,3种表面活性剂对土壤中硝基苯的去除与蒸馏水相比没有明显去除效果,而且实验土壤对3种表面活性剂均有较强的吸附作用。
The concentration of Nd can be concentrated about 4 times with suitable nitric acid elution which includes some H 2C 2O 4 or EDTA.
414× 10 - 6 、2 5～ 30 m L溶液中对钕的吸附 ,选择含有草酸或EDTA的稀硝酸溶液进行淋洗 ,可以使钕富集近 4倍 ,用分光光度法测定淋洗液钕含量 ,回收率为 10 3。
The funciton and acting feature of nitrate in oxidizing leach and absorption elution have been studied.
研究了硝酸根在 D2 63树脂上的吸附淋洗行为特点 ,表明硝酸盐在地浸采铀纯化工艺中是良好的淋洗剂 ,且具有工艺简单、淋洗效果好、外排尾液少等优点 ,可在地浸矿山推广应用。
The decision on a plan and a design of the devices in adsorptions and drip washing of a certain project are persented in this paper.
介绍某工程的吸附淋洗铀装置的方案确定及设计情况 。
The running and result of the adsorption and drip washing equipment at a certain leaching mine are discussed in the paper.
介绍了某地浸矿山吸附淋洗装置在使用中的运行情况及使用效果分析,通过运行观察与测试,证明该装置设计合理,运行正常,达到了设计所要求的功能参数。
A gradient elution method for the characterization of cyclo-depolymerization products of amorphous polyether ketone(sulfone) by reversed phase high performance liquid chromatography was proposed.
0mL/min,梯度淋洗方式;254nm紫外检测,由此方法可将全部同系物组分有效地分离并可准确给出产物中各环状低聚体组分的百分含量。
A new method of simulating separating anions in linear gradient elution ion chromatography with sodium hydroxide was developed.
建立了使用氢氧化钠淋洗液时用计算机模拟离子色谱梯度淋洗分离阴离子的新方法,研究了在线性梯度淋洗过程中不同时间阴离子在色谱柱中的位置及所在位置的淋洗液浓度,得出阴离子在不同时间的容量因子、迁移速度,通过积分得到保留时间。
This paper has studied the application of eluant online generated method, gradient elution and concentrated method to meet the requirement of accurate measurement of super trace chloride and sulfate in water quality of the nuclear power plant, under the condition of using the separate column which has high selection of hydroxide.
研究了在新型离子色谱中采用淋洗液在线发生技术和对OH-选择性高的分离柱的条件下 ,建立适当的梯度淋洗程序和样品浓缩富集方法 ,以满足对核电水质中超痕量Cl-和SO2 -4进行准确测定的要求。