K + can be quantitatively precipitated with sodium tetraphenylboron(Na\|TPB) in HAC\|NaAC buffer solution (pH5~6) and the amount of excess Na\|TPB can be determined by oscillographic titration with a standard solution of tetraethylammonium chlorid monohydrat.
报道了用示波滴定法测定黄原酸钾含量 ,在 p H5~ 6的 HAc- Na Ac缓冲底液中 ,加入四苯硼钠 ( Na- TPB)沉淀 K+ ,过量的 Na- TPB用氯化四乙基铵标准溶液滴定 ,滴至 Na- TPB示波图切口消失为终点 ,终点直观敏锐 ,方法快速简便 ,准确度、精密度均高。
Application of Oscillo-titration Method for Environmental Monitoring——Determination of Soluble Oxygen, Chlorine, Calcium and Magnesium in the Water;
示波滴定法在环境监测中的应用——水中溶解氧、氯、钙及镁的测定
This paper studies on a new method of determining Cu (Ⅱ) in foliar microelement fertilizer containing humic acid by using oscillo-titration.
本文研究了利用示波滴定技术测定含腐植酸的叶面肥中铜含量的新方法。