Rodriguez-Garcia J, Sogo T, Otero S, Paz J M
Laboratorio Central, Hospital Xeral de Galicia, Universidad de Santiago de Compostela, Spain.
Clin Chim Acta. 1998 Jul 28;275(2):151-62. doi: 10.1016/s0009-8981(98)00081-3.
In this study we have assessed transferability in seven different analysers commonly used in clinical chemistry laboratories to measure sodium, potassium and chloride ions. The inaccuracy and linearity of the techniques were satisfactory in most cases, and therefore all the equipment may be used in both pathological and normal ranges of the electrolytes evaluated. In most cases it was possible to correct the inaccuracy. The equipment which gave the best performance when analysing the three ions assessed after considering the Process Capability Index (CPI) and Performance Index (PI) was Nova-5. According to Hyltoft-Petersen's criteria, the results obtained for the three ions with the different analysers cannot be used indiscriminately, apart from potassium. However, after comparison of the results obtained by indirect potentiometry with those obtained by other techniques, we can conclude that the transferability of results is possible in almost every case, as standard deviation from regression (Sy,x) was lower than the permissible analytical error.
在本研究中，我们评估了临床化学实验室常用的七种不同分析仪对钠、钾和氯离子的检测转移性。在大多数情况下，这些技术的不准确性和线性度令人满意，因此所有设备均可用于所评估电解质的病理和正常范围。大多数情况下可以校正不准确性。在考虑过程能力指数（CPI）和性能指数（PI）后，对所评估的三种离子进行分析时性能最佳的设备是Nova-5。根据希尔托夫特-彼得森标准，除钾离子外，不同分析仪对三种离子获得的结果不能不加区分地使用。然而，在将间接电位法获得的结果与其他技术获得的结果进行比较后，我们可以得出结论，几乎在每种情况下结果的转移性都是可能的，因为回归标准差（Sy,x）低于允许的分析误差。
