| 络合滴定法测定化合物中钯量的不确定度评定 |
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| 引用本文： | 邢银娟,甘建壮,金娅秋,曾荷峰,马 媛,陶赛详,杨梅英,钱彦林.络合滴定法测定化合物中钯量的不确定度评定[J].贵金属,2016,37(3):60-65. |
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| 作者姓名： | 邢银娟 甘建壮 金娅秋 曾荷峰 马 媛 陶赛详 杨梅英 钱彦林 |
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| 作者单位： | 贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室,昆明,650106 |
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| 摘 要： | 对二甲基乙二醛肟析出-EDTA络合滴定法测定系列钯化合物中钯量的不确定度进行了分析与评定,并计算出扩展不确定度。结果表明,测定二氯化钯、醋酸钯、二氯四氨钯、硝酸钯溶液和硫酸钯溶液中59.59%、47.73%、42.46%、17.64%和4.01%的钯含量,扩展不确定度分别为0.30%、0.26%、0.24%、0.10%和0.03%。不确定度主要来源于终点判断和标定过程。
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| 关 键 词： | 分析化学 不确定度 络合滴定 钯化合物 |
| 收稿时间： | 2015/6/17 0:00:00 |
Evaluation of Uncertainty for Palladium Content in Palladium Compounds by Complexometric Titration |
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| XING Yinjuan,GAN Jianzhuang,JIN Yaqiu,ZENG Hefeng,MA Yuan,TAO Saixiang,YANG Meiying and QIAN Yanlin.Evaluation of Uncertainty for Palladium Content in Palladium Compounds by Complexometric Titration[J].Precious Metals,2016,37(3):60-65. |
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| Authors: | XING Yinjuan GAN Jianzhuang JIN Yaqiu ZENG Hefeng MA Yuan TAO Saixiang YANG Meiying and QIAN Yanlin |
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| Affiliation: | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China and State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino-Platinum Metals Co. Ltd., Kunming 650106, China |
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| Abstract: | The uncertainty for complexometric titration of EDTA to determine the palladium contents in palladium compounds was evaluated, and the expanded uncertainties were calculated. Results indicated that the expanded uncertainties are 0.30%, 0.26%, 0.24%, 0.10% and 0.03% for palladium contents of 59.59% (PdCl2), 47.73% (Pd(OAc)2), 42.46% (Pd(NH3)4Cl2), 17.64% (Pd(NO3)2 solution) and 4.01% (PdSO4 solution) in palladium compounds, respectively. The uncertainty mainly came from the end judgment and calibration process. |
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| Keywords: | analytical chemistry uncertainty complexometric titration palladium compounds |
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