Determination of molar extinction coefficients ε<sub>m</sub>（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system

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Determination of molar extinction coefficients ε_m（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system

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- Determination of molar extinction coefficients ε_m（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system
- NUCLEAR TECHNIQUES Issue 3, (1996)
- 作者机构：
  
  江苏省农业科学院原子能利用研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL81
- Published：01 March 1996
- 稿件说明：
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[1]李乃宁,周云生,方兵兵.Ce~（4＋）—Ce~（3＋）剂量测量体系中ε_m值的测定[J].核技术,1996(03):170-175.

Determination of molar extinction coefficients ε_m（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system[J]. Nuclear techniques, 1996, (3).
[1]李乃宁,周云生,方兵兵.Ce~（4＋）—Ce~（3＋）剂量测量体系中ε_m值的测定[J].核技术,1996(03):170-175. DOI：

Determination of molar extinction coefficients ε_m（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system[J]. Nuclear techniques, 1996, (3). DOI：

摘要

系统地对Ｃｅ４＋－Ｃｅ３＋剂量测量体系分光光度法中的εｍ（摩尔吸光系数）值进行了实验测定，给出了实验程序，在实验中采用了常规容量分析法和电化学法。对测定中的若干主要干扰因素如紫外效应、酸度效应、温度效应等进行了研究。对２４个实验测定值进行了统计分析，其数据符合高斯分布。最终测得Ｃｅ４＋－Ｃｅ３＋剂量测量体系的εｍ值为５５３．２±１．３ｍ２·ｍｏｌ－１，其平均值的相对标准偏差为０．２４％（９５％置信水平），测量总不确定度为１．５％。

Abstract

(Ce4+) values of the eerie-cerous system have been measure and the experimental procedure is described in this paper. Both routine titration method and electrochemical measurement were used. Some interference factors

such as ultraviolet

acidity and temperature

were studied as well. The temperature coefficient of εm（Ce4+ ） value in this experiment is about -0.1%℃ -1. A statistic analysis was made for 24 experimental values of εm（Ce4+ ） and a Gaussian distribution was found. Ultimately

an average molar extinction coefficient of 553.2 ±1.3m2·mol-1 was obtained at ￣ 320nm in 0.4 mol/L H2SO4 system

with a relative standard deviation of 0.24% （95% confidence level） and a total uncertainty of 1.5%.

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Determination of molar extinction coefficients εm（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system

DOI：

摘要

Abstract

关键词

Keywords

references

Determination of molar extinction coefficients ε_m（Ce￣（4+））Of Ce￣（4+）-Ce￣（3+） dosimetric system