| 共振瑞利散射法测定硫氰酸盐-碱性三苯甲烷染料体系中的痕量钼 |
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| 引用本文： | 刘绍璞,周光明,刘忠芳,李明.共振瑞利散射法测定硫氰酸盐-碱性三苯甲烷染料体系中的痕量钼[J].高等学校化学学报,1998,19(7):1040-1044. |
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| 作者姓名： | 刘绍璞 周光明 刘忠芳 李明 |
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| 作者单位： | 西南师范大学环境化学研究所, 重庆, 400715 |
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| 摘 要： | 研究了钼(Ⅴ)与硫氰酸盐和结晶紫、乙基紫、孔雀石绿、亮绿及碘绿等5种碱性三苯甲烷染料形成离子缔合配合物的共振瑞利散射光谱。考察了它们的光谱特征、影响因素和适宜的反应条件,确定了共振瑞利散射强度与钼(Ⅴ)浓度之间的关系。方法灵敏度高,不同体系对钼的检出限在2.1～12.0μg/L之间,提出了用共振瑞利散射测定钼的新分析方法,将其用于钢铁中痕量钼的测定获得满意的结果。
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| 关 键 词： | 共振瑞利散射 钼(V) 硫氰酸盐 碱性三苯甲烷染料 |
| 收稿时间： | 1997-06-30 |
| 修稿时间： | 1997年6月30日 |
Resonance Rayleigh Scattering Method for the Determination of Trace Amounts of Molybdenum with Thiocyanate-basic Triphenylmethane Dye Systems |
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| LIU Shao-Pu,ZHOU Guang-Ming,LIU Zhong-Fang,LI Ming.Resonance Rayleigh Scattering Method for the Determination of Trace Amounts of Molybdenum with Thiocyanate-basic Triphenylmethane Dye Systems[J].Chemical Research In Chinese Universities,1998,19(7):1040-1044. |
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| Authors: | LIU Shao-Pu ZHOU Guang-Ming LIU Zhong-Fang LI Ming |
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| Institution: | Institute of Environmental Chemistry, Southwest China Normal University, Chongqing, 400715 |
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| Abstract: | Studies on the resonance Rayleigh scattering (RRS) spectra of the ion association complexes of MoO(SCN) 5] 2- were carried out with the basic triphenylmethane dye such as crystal violet (CV), ethyl violet (EV), malachite green (MG), brilliant green (BG) and iodine green (IG). The spectral characteristics, the effect factors and the optimum reaction conditions have been investigated. The quantitative relationships of the intensities of RRS to the concentration of molybdenum were established. The new and highly sensitive ways for the determination of molybdenum by RRS have been proposed. The methods can be applied to the determination of trace amounts of molybdenum in steel with satisfactory results. |
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| Keywords: | Resonance Rayleigh scattering Molybdenum Thiocyanate Basic triphenylmethane dyes |
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