Abstract：Abstract：The certified reference material of reserpine with characteristic value of (5，10，50，100)mg/L in Carbon dioxide-free pure water and Potassium hydrogen phthalate (National Grade I Purity Reference Material) as raw materials by weighting-volumetric method. The reference material was primarily used for the daily calibration and metrological verification of total organic carbon analyzer as well as evaluation and validation of analytical methods. In addition, the examination of homogeneity, stability was qualified via the adjustment of prepared method. The relative expanded uncertainty of value result is 2.6% (k=2).
2020, Vol. 30 