镎

DTPA与铀、镎、钚的配位作用Ⅰ.DTPA与Np（Ⅳ）配合物稳定常数的测定

Complexing reactions of DTPA with uranium , neptunium and plutonium ⅰ . determination of stability constants of DTPA NP (ⅳ) complex

Purex过程中镎的行为与控制

The behavior and control of neptunium in Purex Process

本文也对~（60）Coγ辐照场中镎价态变化的反应机理进行了一些讨论。

The reaction mechanism of the change of Np valence states under 60Co irradiation is also discussed .

Purex流程中镎在1A槽的走向控制和新型萃取剂酰胺荚醚的萃取热力学及应用研究

Study on Neptunium Control in Co-decontamination Step of Purex Process and the Extraction of New Extractant Amido Podand

在与吸附实验同样pH值的条件下，对吸附在硅胶上的三种价态的镎进行洗脱实验，发现解吸分配系数大于吸附分配系数，说明镎在硅胶上的吸附是不可逆过程；

The desorption experiments in the same pH of solutions as adsorption experiments show that the desorption coefficient is bigger than the adsorption coefficient , so the adsorption of neptunium on silica gel in nitric acid belongs to irreversible process .

FIA快速测定乏燃料后处理工艺溶液中铀、钚、镎的方法及仪器研究

Study on the Method and Instrument for Rapid Determination of Uranium Plutonium and Neptunium in Spent Fuel Reprocessing Solution by Flow Injection Analysis

用阴离子交换法研究了TRPO流程中镎和钚的浓缩和分离。

The concentration and separation of Np and Pu in TRPO process are studied by anion exchange method .

DTPA与铀、镎、钚的配位作用Ⅲ.TBP-DTPA-铀、镎、钚体系中的氧化还原反应

Complex reactions of DTPA with uranium 、 neptunium and plutonium ⅲ oxidation reduction reactions in TBP DTPA u 、 np 、 Pu system

以流动注射分析（FIA）原理为基础，研制了测定铀、钚、镎的专用仪器；

Based on the principle of flow injection analysis ( FIA ), a special instrument for measuring uranium , plutonium and neptunium is developed ;

直接扣除法的误差不大于±5%，但仅适用于~（239）U产生量较少的情况，且应尽早地进行铀、镎、钚的定量分离。

An error less than ± 5 % could be obtained for the direct subtraction method which is applicable only when the total yield of uranium-239 is small , and when using this method , the uranium and neptunium must be separated from plutonium as early as possible .

本论文重点研究了一种新型无盐试剂&羟基脲（HU）与铀、镎、钚相互作用的化学，旨在研究这种新型无盐试剂在Purex流程铀、钚分离段（1B）中应用的可能性。

The thesis focuses on the study of the reactions of hydroxyurea ( HU ), a novel salt free agent , with uranium , neptunium and plutonium in order to investigate the possibilities of its application in the Purex process ( 1B ) for uranium and plutonium separation .

锕系元素钚、镅、镎年龄相关的生物动力学模式

Age-specific biokinetic models for actinides of plutonium , americium and neptunium

镎－铀－肼共存体系的光化学研究

Study on photochemistry of neptunium uranium diamide coexisting in nitric acid system

镎在硅胶上的吸附分配系数随温度的升高而增加；

Adsorption distribution coefficients increase with the increasing of temperature .

分光光度法对有机体系中镎的光化学研究

Spectrophotometry for photochemistry study of neptunium in organic system

水力压裂处置条件下核素镎的存在形态

Chemical forms of neptunium in hydraulic fracture disposal site

镎、钚在处置区的存在形式及影响因素

Chemical Forms of Neptunium and Plutonium in Disposal Site and Their Influence Factors

本流程的镎、钚浓缩倍数为840，它们的浓度达到约20g/L，镎和钚的分离系数βPu/Np>100；

The concentration and separation process of Np and Pu are given out .

电解还原铀钚分离过程中镎行为的研究

The investigation on neptunium behavior in electrolytic partitioning process of uranium and plutonium

电沉积法制备镅、钚和镎的α源

The Preparation of Alpha Sources for Plutonium , Neptunium and Americium by Electrodeposition

镎的回收率为98.1+2.6%。

The recoveries are 98.1 ± 2.6 % .

水力压裂处置中镎、钚迁移行为的模拟研究

Migration of Neptunium and Plutonium in Hydrofracturing Disposal

镎、钚、锶在黄土地下水中地球化学行为的模拟研究

Modelling of geochemical behavior of neptunium , plutonium and strontium in a loess aquifer

大量铀中镎钚的分离与测定

Separation and Determination of Pu Np in the Existence of a Large Quantity of Uranium

镎离子在碳酸盐溶液中的吸收光谱、氧化还原及络合反应的研究

Studies on the absorption spectra redox and complexation reaction of neptunium ions in carbonate solution

并建立了分别测定铀、钚、镎的三个快速分析方法。

Three rapid analytical methods for measuring uranium , plutonium and neptunium are established respectively .

镎-237放射性活度标准溶液的研制

Preparation of Neptunium-237 Radioactivity Reference Solution

两套可供选择的流路分别用于测钚（或镎）和铀。

Two alternative flow routes are used for measuring plutonium ( or neptunium ) and uranium respectively .

从动力堆核燃料后处理强放废液中提取镎的模拟试验研究

Simulation study of the extraction behavior of neptunium from high active reprocessing liquid waste of power reactor fuel

草酸-硝酸体系中铀、镎、钚、镅、锔的同时电沉积

Simultaneous electrodeposition of uranium , neptunium , plutonium , americium , and curium from oxalic acid-nitric acid system