| 紫外光谱法测定钾盐中钾含量的方法研究 |
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| 引用本文： | 杨红梅.紫外光谱法测定钾盐中钾含量的方法研究[J].安徽农业科学,2012,40(4):2032-2033. |
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| 作者姓名： | 杨红梅 |
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| 作者单位： | 青海大学,青海西宁,810016 |
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| 摘 要： | 目的]研究用紫外光谱法测定钾盐中钾的含量。方法]采用分光光度导数法,选择276 nm作为一阶导数测定波长进行扫描测量,对试验样品进行微量分析,并对其准确度和精密度进行评价。结果]紫外光谱法数据准确,重复性好。与重量法相比,该方法使用的试剂少、检测时间短。结论]该方法可用于日常检测分析。
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| 关 键 词： | 紫外光谱 钾含量 测定 |
Study on Determination of Potassium Content in Sylvite by Ultraviolet Spectrophotometry |
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| YANG Hong-mei.Study on Determination of Potassium Content in Sylvite by Ultraviolet Spectrophotometry[J].Journal of Anhui Agricultural Sciences,2012,40(4):2032-2033. |
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| Authors: | YANG Hong-mei |
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| Institution: | YANG Hong-mei(Qinghai University,Xining,Qinghai 810016) |
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| Abstract: | Objective] The research aimed to determine the potassium content in sylvite by ultraviolet spectrophotometry.Method] Derivative method of spectrophotometry was adopted.The test sample was measured by wavelength scanning in 276 nm,and its veracity and precision were evaluated.Result] The data was accurate and reproducible.Comparing with the gravimetric method,fewer reagents and little quantities were needed,and the test time was short.Conclusion] The method could be used for routine analysis. |
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| Keywords: | Ultraviolet spectrophotometry Potassium content Determination |
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