摘要
合成了一种新三氮烯类显色剂1-(4-磺基苯)-3-(2-吡啶)-三氮烯(简称SPPT),并研究了在TritonX-100存在下,于pH为9.18的Na2B4O7-NaOH缓冲溶液中与镉的显色反应。结果表明,试剂与镉生成橙红色配合物。方法用于废水中微量镉的测定,结果令人满意。
The synthesis of a new reagent 1-(4-sulfophenyl)-3-(2-pyridinamine)triazene (SPPT) and its color formation reaction with Cd ( Ⅱ ) are reported. In a weak alkaline medium Na2B4O7-HCl(pH= 9.18) and in the presence of triton X-100,Cd ( Ⅱ ) reacts with reagent to form orange-red complex. The method has been applied to the determination of micro amounts of Cd ( Ⅱ ) in wastewater with satisfactory results.
出处
《光谱实验室》
CAS
CSCD
2006年第2期242-245,共4页
Chinese Journal of Spectroscopy Laboratory