磁化溶液样品对ICP发射光谱的增敏效应

利用磁感应强度为0.24T的磁场处理含乙醇的水溶液，研究了样品溶液的物理性质和雾化特性以及样品溶液中元素的谱线强度随磁化时间的变化情况，并且讨论了磁化机理。实验结果表明，随着磁处理时间的延长，分析样品的有效利用率提高了；当样品中加入乙醇时，元素的谱线强度较早地出现了峰值。在磁化时间为2 h的条件下，不含乙醇的样品溶液中，元素Zn, Pb, Cd, Fe, Si, Cu, Cr和Sr的谱线强度比溶液未磁化时分别提高了22.9%, 38.8%, 25.6%, 48.3%, 52.4%, 6.0%, 22.3%和22.7%；含6%乙醇的样品溶液中，元素Zn, Pb, Cd, Fe, Si, Cu, Cr和Sr的谱线强度比溶液未磁化时分别增加了22.4%, 42.6%, 39.4%, 43.9%, 72.4%, 9.7%, 16.1%和17.1%。样品溶液磁化后进行分析， 有利于降低光谱分析检出限。

Enhancing Effect of Magnetizing Solution Sample on Inductively Coupled Plasma Atomic Emission Spectrum

In the present paper,the physics property and nebulization character of the sample solution as well as elemental spectrum intensity were investigated with the prolonging of magnetization time after the water solution with the ethanol was magnetized under magnetic field of 0.24T.The magnetization mechanism was discussed.The experiment result shows that the efficient age-rate of the analyzed sample is increased.The peak values of the spectrum intensity appear when the ethanol is added into the sample.Under the magnetization time of 2 hours,the spectrum intensities of Zn,Pb,Cd,Fe,Si,Cu,Cr and Sr in the sample solution without the ethanol were increased by 22.9%,38.8%,25.6%,48.3%,52.4%,6.0%,22.3% and 22.7% than that with the non-magnetic water,respectively;The signal intensities of the elements in the sample solution with the ethanol of 6% were increased by 22.4%,42.6%,39.4%,72.4%,43.9%,9.7%,16.1% and 17.1% than that with the non-magnetic water,respectively.The detection limit of spectral analysis was reduced when the magnetized sample solution was analyzed.