Abstract:In order to increase the intensity of inductively coupled plasma radiation and reduce the detection limit of analysis, the experiment studied on the change of surface tension and viscosity of the water samples which were processed by the ultrasonic cavitation, meanwhile the influence of cavitation effect to samples’ spectral intensity and signal-to-background ratio was researched. The experimental results showed that the surface tension and viscosity of sample solution initially decreased and then increased as the ultrasonic power and cavitation time monotonously increased, and the minimum value could be achieved at the ultrasonic power of 50W and the cavitation time of 15 minutes. Under the best experiment condition (the ultrasonic power of 50W and the cavitation time of 15 min), the results revealed that the spectral lines intensity of element Al,Cd,Mn,Ni,Pb and Zn were increased around 56.73%,57.23%,44.57%,43.20%,39.04% and 40.19% than that without cavitation treatment, spectral signal-background ratio increased about 61.54%,64.86%,40.95%,52.27%,37.84% and 40.84%, respectively. Thus it can be seen that cavitation-processed water solution can improve the quality of Inductively Coupled Plasma-atomic emission spectrum.
Key words:Inductively coupled plasma;Cavitation;Spectral intensity;Signal-to-background ratio
[1] Stratis J A, Lalia-Kantouri M, Charalambous E, et al. Therm. Anal. and Calorim., 2011, 104: 431. [2] Zhu T Q, Wang C S, Wang H M, et al. Journal of Cultural Heritage, 2010, 11: 482. [3] Cheng Yonga. Procedia Engineering, 2011, 24: 447. [4] Sengupta A, Kulkarni M J, Godbole S V. Radioanal. Nucl. Chem., 2011, 289: 961. [5] Adya V C, Sengupta A, Dhawale B A, et al. Radioanal. Nucl. Chem., 2012, 291: 843. [6] Yang X J, Low G K C. Environ. Chem. Lett., 2009, 7: 381. [7] Alexandra Petrotou, Konstantinos Skordas, Georgios Papastergios, et al. Environ. Earth. Sci., 2012, 65: 823. [8] Sitki Baytak, Fahmida Zereen, Zikri Arslan. Talanta, 2011, 84: 319. [9] Mustafa Harmankaya, Sait Gezgin, Mehmet Musazcan. Environ Monit Assess, 2012, 184: 5415. [10] Nancy Lewen, Dennis Nugent. Journal of Pharmaceutical and Biomedical Analysis, 2010, 52: 652. [11] Abdullah Sivrikaya, Mursel Bicer, Mustafa Akil, et al. Biol. Trace. Elem. Res., 2012, 147(1-3): 195. [12] Razic S, Todorovic M, HolclajtnerAntunovic I, et al. Fresenius Journal of Analytical Chemistry, 1996, 355(3-4): 274. [13] Araz Bidari, Mohammad Reza Ganjali, Yaghoub Assadi, et al. Food Anal. Methods, 2011, 4(3): 1. [14] CHEN Jin-zhong, WEN Nuan, SUN Jiang, et al(陈金忠, 温 暖, 孙 江, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2012, 32(6): 1654.