1、一、实验记录与结果1、甲醛的精密度实验序号0管0.5µg1.0µg2.0µg4.0µg6.0µg8.0µg10.0µg100.0060.0120.0260.0530.080.110.137200.0060.0120.0260.0530.790.1090.137300.0060.0120.0260.0530.080.110.137均值00.0060.0120.0260.0530.080.110.137标准偏差SD/00000.000570.000570变异系数Cv%/00000.0072470.0052650合并变异系数Cv=%
2、甲醛的加标回收实验（加标量6.0µg）2.1标准曲线的绘制µg1246810吸光度0.0120.0270.0530.0790.110.137
3、2加标量吸光度的测定管号标准溶液mL加入量µg吸光度A测定量µg加标回收率P%0000.000//1660.0805.9198.5%2660.0815.9198.5%3660.0815.9198.5%总加标回收率P==98.5%