Determination of the ConcenDetermination of the Concentration of Impurities

• Main Authors: Li, Mei-Yi, 李美儀
• Other Authors: Ru-Shi Liu
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/88056321184420230621

碩士 === 國立臺灣大學 === 化學系 === 86 === In this study, we have developed a chemical method to analysis the concentration of impurities in the used gallium by inductively coupled plasma mass spectrometry(ICP-MS). The gallium with the impurities was digested with aqua regia. Then, the matrix(gallium ion) with diisopropyl ether and hydrochloric acid(HCl)by shaking 5 mins, than, got the aqueous solution and evaporated it to dryness. Finally dilute it with HNO3/H2O and analyzed it in ICP-MS. Moreover, we have also studied the effect of the purification power in the used gallium by the acid leaching method. After we reused the gallium doping Te or Zn several times, the quantity of doping element was difficult to control. Our research applied to develop the technology of purification gallium and built the way that determinates the concentration of impurities in gallium. Our research not only gave the way to determine the concentration of impurities in gallium but also used the easier way of acid leaching to purify gallium.