| 紫外分光光度法测定硫酸中的氮氧化物 |
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| 引用本文： | 陈庆芝,肖凡,付永立,刘博雅,王 茜,路 峰.紫外分光光度法测定硫酸中的氮氧化物[J].中国无机分析化学,2015,5(3):80-82. |
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| 作者姓名： | 陈庆芝 肖凡 付永立 刘博雅 王 茜 路 峰 |
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| 作者单位： | 河北省地矿中心实验室,河北省地矿中心实验室,河北省地矿中心实验室,河北省地矿中心实验室,河北省地矿中心实验室,河北省地矿中心实验室 |
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| 摘 要： | 建立了使用紫外分光光度法测定硫酸中氮氧化物的方法。利用高锰酸钾将试样中的亚硝酸根氧化成硝酸根,然后在硫酸(30%)介质中,于210nm波长处定量测定试样中氮氧化物的含量。方法检出限为0.0000075%,线性相关系数(r)为0.999 0,平均加标回收率为97.2%~102.8%,平均相对标准偏差(RSD,n=6)为2.9%~3.1%。方法灵敏度高、检出限低,操作简便、成本低,可应用于蓄电池电解液中氮氧化合物的检测。
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| 关 键 词： | 氮氧化物 紫外分光光度法 硫酸 蓄电池电解液 |
| 收稿时间： | 2015/4/17 0:00:00 |
| 修稿时间： | 2015/4/29 0:00:00 |
Determination of Oxynitride in Sulfuric Acid by Ultraviolet Spectrophotometry |
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| CHEN Qingzhi,XIAO Fan,FU Yongli,LIU Boy,WANG Qian and LU Feng.Determination of Oxynitride in Sulfuric Acid by Ultraviolet Spectrophotometry[J].Chinese Journal of Inorganic Analytical Chemistry,2015,5(3):80-82. |
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| Authors: | CHEN Qingzhi XIAO Fan FU Yongli LIU Boy WANG Qian and LU Feng |
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| Institution: | Hebei Geological laboratory,The Geoanalytical Laboratory of Hebei,Hebei Geological laboratory,Hebei Geological laboratory,Hebei Geological laboratory,Hebei Geological laboratory |
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| Abstract: | A method has been developed for the determination of oxynitride in sulfuric acid by ultraviolet spectrophotometry(UV). The method used potassium permanganate to oxidize nitrite to nitrate, and then quantitatively determined the content of oxynitride by UV at wavelength of 210 nm under the acidity condition of 30% sulfuric acid. The limits of detection is 0.0000075%, the linearity correlation coefficients is 0.9990, the mean recoveries are in the range of 97.2% ~ 102.8%, and accordingly the relative standard deviation ranged from 2.88% to 3.12%. The method which had high sensitivity, low detection limit, easy operations and low costs can be used to accurately determine oxynitride in battery electrolyte. |
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| Keywords: | oxynitride ultraviolet spectrophotometry sulfuric acid battery electrolyte |
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