| 等离子体对ICP-MS调谐结果的影响 |
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| 引用本文： | 付燕利,邱坤艳,陈纯,赵小学.等离子体对ICP-MS调谐结果的影响[J].安徽农业科学,2012,40(21):10767-10768,10825. |
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| 作者姓名： | 付燕利 邱坤艳 陈纯 赵小学 |
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| 作者单位： | 济源市环境监测站,河南济源,459000;河南省环境监测中心,河南郑州,450004 |
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| 基金项目： | 重金属污染防治专项资金 |
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| 摘 要： | 目的]为了提高灵敏度和减少氧化物、双电荷等的质谱干扰。方法]分析了等离子体参数射频功率、载气流量、采样深度、雾化泵泵速对ICP-MS灵敏度、氧化物、双电荷的影响。结果]以ICP-MS 7700x为例,给出在标准模式下各参数的最佳范围,即射频功率1400～1 500 W,采样深度7.0～8.5 mm,载气流量1.05～1.15 ml/min,雾化泵泵速0.10～0.15 r/s。结论]该研究得到ICP-MS 7700x标准模式等离子体参数。
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| 关 键 词： | 等离子体 调谐 灵敏度 氧化物 双电荷 |
Influence of Plasma Condition on ICP-MS Tuning Result |
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| Institution: | FU Yan-li et al(Environmental Monitoring Station of Jiyuan,Jiyuan,Henan 459000) |
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| Abstract: | Objective]The research aimed to improve the sensitivity and reduce the spectral interference of oxide and double charge,etc.Method] The influence of plasma condition,including RF power,sample depth,carrier gas and nebulizer pump,on ICP-MS normal gas model tuning about the sensitivity and oxide ions and doubly charged ions were researched.Result] Taking ICP-MS 7700x for example,optimum range of plasma condition was given,such as RF power 1 400-1 500 W,sample depth 7.0-8.5 mm,carrier gas 1.05-1.15 ml/min,and nebulizer pump 0.10-0.15 r/s.Conclusion] The plasma parameter of ICP-MS 7700x was gained. |
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| Keywords: | Plasma Tuning Sensitivity Oxide ions Doubly charged ions |
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