Approved Recommendation (1993) on JSCC Methods on the Correction of Results Using Certified Serum Reference Materials for the Determination of the Concentration of Ionized Calcium in Blood.
1) Siggaard-Andersen O, Thode J, Fogh-Andersen N: What is ionized calcium?, Scand J Clin Lab Invest, 43 (Supp 165): 11-16, 1983.
2) Boink ABTJ, Buckley BM, Christiansen TF, Covington AK, Maas AHJ, Muller-Plathe O, Sachs C, Siggaard-Andersen O: Reference method for the determination of the substance concentration of ionized calcium in serum, plasma or whole blood, Methodol Clin Appl ISE, 8: 39-61, 1987.
4) Umemoto M, Tani W, Kuwa K: Development of reference materials for standardization of ionized calcium and blood gases, Electrolytes Blood Gases Other Crit Anal: Patient Measurement Government, 14: 17-59, 1992.
5) Umemoto M, Ujihira Y, Kuwa K, Tani W: A proposed reference cell for measurement of ionized calcium in plasma with ion-selective electrodes and elucidation of factors affecting the results, Anal Chem,(in press).