Arkhangel'skaia A S, Khomik L I
Klin Lab Diagn. 1994(4):9-11.
The authors have studied the possibility of using ion-selective electrodes Kritus (Czecho-Slovakia) for analysis of whole blood and serum without preliminary labor-consuming sample preparation. Chloride ions were found to be detectable in the blood serum by potentiometric titration with Ag nitrate solution making use of a pAg-CE-pF-CE pair in ethanol, acetone, or acetic acid medium. Active concentrations of whole blood and serum bromide- and iodide ions may be measured by direct potentiometry with pBr-CE-pF-CE and pI-CE-pF-CE pairs, respectively, against the background of 1 M potassium (or sodium) nitrate solution providing the constancy of solution ionic strength.
作者研究了使用Kritus离子选择电极（捷克斯洛伐克）在无需预先进行耗时的样品制备的情况下分析全血和血清的可能性。通过在乙醇、丙酮或乙酸介质中利用pAg-CE-pF-CE对用硝酸银溶液进行电位滴定，发现血清中的氯离子是可检测的。全血和血清中溴离子和碘离子的活性浓度可分别通过使用pBr-CE-pF-CE对和pI-CE-pF-CE对在1M硝酸钾（或硝酸钠）溶液背景下进行直接电位测定来测量，以确保溶液离子强度的恒定。
