火焰原子吸收法与邻菲口罗啉光度法测定水和废水中铁具有精密度高、准确度好的持点。
There are high precision and accuracy to detect ferro in water and wastewater by the method of flame atomic absorption and o-phenanthroline photometry.
本文提出一种新方法——密度矩和法，用底片上已知亮度恒星的PDS测微密度数据来同时决定底片特性曲线和星等零点。
A new method is suggested for determining the characteristic curve of a plate, as well as the magnitude zero point, using PDS microdensitometer data of stars of known brightness on the plate.
方法改良终点法为两点速率法，进行线性、准确性、精密度、回收试验、临床应用等研究。
Method Using two point-speed method instead of customary end-point method and the linearity, accuracy, precision, recovery experiment, clinical application, etc were detected.
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