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镍—丁二酮肟分光光度法操作简便、分析速度快,通常应用于低含量镍的测定,由于目前国产分光光度计如721型不配置微机,故只能在T/A表头上读取吸光度,因此测定高含量镍误差较大.沈志洪等研制了Apple-Ⅱ同时采集和处理四台721型分光光度计测试数据联机装置,该联机装置在吸光度≤0.1时采集精度比T/A表头读数提高一个数量级,0.1～0.6A为1.5～5倍,而且准确吸光度量程扩展到1.5A.这样有可能用丁二酮肟直接光度法测定高含量镍,并选择
Nickel - dimethylglyoxime spectrophotometry easy to operate, fast analysis, usually used in the determination of low levels of nickel, due to the current domestic spectrophotometer such as 721 does not configure the computer, it can only be read on the T / A header Absorbance, so the determination of high content of nickel greater error. Shen Zhihong and other developed Apple-Ⅱ Simultaneous collection and processing of four 721 spectrophotometer test data on-line device, the online device in the absorbance ≤ 0.1 acquisition accuracy than T / A meter The readings are an order of magnitude increased from 1.5 to 5 times 0.1 to 0.6 A, and the accurate absorbance range extends to 1.5 A. This makes it possible to determine high levels of nickel using the diacetyldioxime direct photometric method and to select