摘要
采用ＨＮＯ＿３－ＨＦ混合酸水浴加热快速分解样品，丁二酮肟分光光度法测定钨合金中镍。以酒石酸掩蔽基体钨及其它共存元素的干扰，在波长４７０ｎｍ处测量吸光度。方法快速、简便，精密度、准确度均佳。
The sample of tungsten alloy was dissolved rapidly by HNO_2-HF mixed acid under waterbath,and its nickel was determined by the dimethylglyoxime photometric method with the maximum absorbance at 470nm.The interferences of tungsten matrix and other elements can be eliminate by tartaric acid.This method can be tised to determine nickel(0.5%～7%)in tungsten alloy with good accuracy and precision.
出处
《兵器材料科学与工程》
CSCD
北大核心
1994年第3期52-55,共4页
Ordnance Material Science and Engineering
关键词
钨合金
溶解
分光光度法
镍
tungsten alloy, rapid dissolution, spectrophotometry
