[3] Mary Ann H. Franson, et al. Standard Methods for the Examination of Water and Wastewater. 21 Edition, APHA, AWWA, WEF, 2005.
[6] Chai X S, Hou Q X, Luo Q, et al. Analytica Chimica Acta, 2004, 507: 281.
[8] ISO 15705—2002 Water Quality-Determination of the Chemical Oxygen Demand index(ST-COD)-Small-Scale Sealed-Tube Method.