在线化学蒸气发生-电感耦合等离子体原子发射光谱法测定废催化剂中的微量铑
使用电感耦合等离子原子发射光谱（ICP-AES）研究了贵金属铑和NaBH4在酸性水溶液中的化学蒸气发生反应的条件,并测定了有机合成催化剂中的铑。研究结果表明：在NaBH4和样品溶液流速为2mL/min、废液排放流速为6mL/min的条件下的最佳蒸气发生条件为：载气流速0.4L/min、HNO3浓度为1.0mol/L、NaBH4浓度为1.2%（m/V）。研究中获得的铑化学蒸气进样效率是常规的气动雾化进样效率的2.7倍;检出限是6.9μg/L,略优于气动雾化法;线性范围20～1500μg/L;线性相关系数是0.9986;RSD是1.6%。样品分析加标回收率分别是94%和97%。用本法测得的样品值与...
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| Published in | Fēnxī huàxué Vol. 38; no. 3; pp. 421 - 424 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
天津师范大学化学与生命学院,天津市细胞遗传与分子调控重点实验室,天津,300387
2010
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-3820 |
| DOI | 10.3724/SP.J.1096.2010.00421 |
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| Abstract | 使用电感耦合等离子原子发射光谱（ICP-AES）研究了贵金属铑和NaBH4在酸性水溶液中的化学蒸气发生反应的条件,并测定了有机合成催化剂中的铑。研究结果表明：在NaBH4和样品溶液流速为2mL/min、废液排放流速为6mL/min的条件下的最佳蒸气发生条件为：载气流速0.4L/min、HNO3浓度为1.0mol/L、NaBH4浓度为1.2%（m/V）。研究中获得的铑化学蒸气进样效率是常规的气动雾化进样效率的2.7倍;检出限是6.9μg/L,略优于气动雾化法;线性范围20～1500μg/L;线性相关系数是0.9986;RSD是1.6%。样品分析加标回收率分别是94%和97%。用本法测得的样品值与原子吸收法的测得值吻合很好。 |
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| AbstractList | O65; 使用电感耦合等离子原子发射光谱(ICP-AES)研究了贵金属铑和NaBH_4在酸性水溶液中的化学蒸气发生反应的条件,并测定了有机合成催化剂中的铑.研究结果表明: 在NaBH_4和样品溶液流速为2 mL/min、废液排放流速为6 mL/min的条件下的最佳蒸气发生条件为:载气流速0.4 L/min、HNO_3浓度为1.0 mol/L、NaBH_4浓度为1.2%(m/V).研究中获得的铑化学蒸气进样效率是常规的气动雾化进样效率的2.7倍;检出限是6.9 μg/L, 略优于气动雾化法;线性范围20～1500 μg/L;线性相关系数是0.9986;RSD是1.6%.样品分析加标回收率分别是94%和97%.用本法测得的样品值与原子吸收法的测得值吻合很好. 使用电感耦合等离子原子发射光谱（ICP-AES）研究了贵金属铑和NaBH4在酸性水溶液中的化学蒸气发生反应的条件,并测定了有机合成催化剂中的铑。研究结果表明：在NaBH4和样品溶液流速为2mL/min、废液排放流速为6mL/min的条件下的最佳蒸气发生条件为：载气流速0.4L/min、HNO3浓度为1.0mol/L、NaBH4浓度为1.2%（m/V）。研究中获得的铑化学蒸气进样效率是常规的气动雾化进样效率的2.7倍;检出限是6.9μg/L,略优于气动雾化法;线性范围20～1500μg/L;线性相关系数是0.9986;RSD是1.6%。样品分析加标回收率分别是94%和97%。用本法测得的样品值与原子吸收法的测得值吻合很好。 |
| Abstract_FL | An inductively coupled plasma atomic emission spectrometry(ICP-AES) combined with a boron hydride vapour generation device was used for the determination of rhodium in waste catalyst. When the flow rate of sample and sodium borohydride solution was 2 mL/min, waste rate was 6 mL/min, the optimum conditions were as follows: 0.4 L/min of carrier rate, 1.0 mol/L of acidity of nitric acid for vapor generation and concentration of sodium borohydride 1.2(m/V). The study showed that a two-fold increase in the efficiency of rhodium was achieved as compared to nebulization. The detection limit was 6.9 μg/L, which is slight better than that of with nebulization. The linear range for rhodium was 20-1500 μg/L with a correlation coefficient of 0.9986. The mean recovery of sample analysis was 95.5%. Excellent agreement was found between the present method and FAAS. |
| Author | 段旭川 |
| AuthorAffiliation | 天津师范大学化学与生命学院,天津市细胞遗传与分子调控重点实验室,天津300387 |
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| Author_FL | DUAN Xu-Chuan |
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| Author_xml | – sequence: 1 fullname: 段旭川 |
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| Keywords | 电感耦合等离子体原子发射光谱 铑 Chemical vapour generation 化学蒸气发生 Rhodium Inductively coupled plasma atomic emission spectrometry |
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| Publisher | 天津师范大学化学与生命学院,天津市细胞遗传与分子调控重点实验室,天津,300387 |
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| Snippet | ... O65; 使用电感耦合等离子原子发射光谱(ICP-AES)研究了贵金属铑和NaBH_4在酸性水溶液中的化学蒸气发生反应的条件,并测定了有机合成催化剂中的铑.研究结果表明: 在NaBH_4和样品溶液流速为2 mL/min、废液排放流速为6 mL/min的条件下的最佳蒸气发生条件为:载气流速0.4... |
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| SubjectTerms | 化学蒸气发生 电感耦合等离子体原子发射光谱 铑 |
| Title | 在线化学蒸气发生-电感耦合等离子体原子发射光谱法测定废催化剂中的微量铑 |
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