| 1. | Calibration graph obtained by the modified procedure for ddmbac showed good linearity and its correlation coefficient was above 0 . 999 . the coefficients of variation and average recovery of added ddmbac were up to the mustard . the linear concentration ranges for batch determination of ddmbac were 0 . 06 ~ 3 . 33mg / l 利用改进后的方法对ddmbac的测定建立了质量控制体系,其标准曲线的相关系数大于0 . 999 ,线性良好,精密度和准确度均符合检测要求,线性范围为0 . 06 ~ 3 . 33mg / l 。 |