Department of Electrochemistry, Lublin University of Technology, Nadbystrzycka 38, PL-20618 Lublin, Poland.
Adv Colloid Interface Sci. 2009 Nov 30;152(1-2):14-25. doi: 10.1016/j.cis.2009.08.003. Epub 2009 Aug 26.
The values of PZC and IEP of metal oxides reported in the literature are affected by the choice of the specimens to be studied. The specimens, which have PZC and IEP similar to the "recommended" value, are preferred by the scientists. The biased choice leads to accumulation of results for a few specimens, and the other specimens are seldom studied or they are subjected to washing procedures aimed at shift of the original IEP toward the "recommended" value. Taking the average or median of all published PZC and IEP for certain oxide as the "recommended" value leads to substantiation of previously published results due to overrepresentation of certain specimens in the sample.
文献中报道的金属氧化物的 PZC 和 IEP 值受所研究样品选择的影响。科学家们更喜欢具有与“推荐”值相似的 PZC 和 IEP 的样品。有偏向的选择导致少数几个样品的结果积累，而其他样品则很少被研究，或者它们会被进行清洗程序，以将原始 IEP 转移到“推荐”值。将某些氧化物的所有已发表的 PZC 和 IEP 的平均值或中位数作为“推荐”值，由于某些样品在样本中占很大比重，从而证实了之前发表的结果。
