对第4代钠玻片和第4代参比液进行评估，以用于柯达400分析仪。

Generation 04 sodium slides and generation 04 reference fluid evaluated for use with the Ektachem 400 Analyzer.

作者信息

Jack R M, Noble W

出版信息

Clin Chem. 1987 Jun;33(6):845-7.

Abstract

Evaluation of a new generation of sodium slides and reference fluid for use with the Kodak Ektachem 400 Analyzer demonstrated improved performance in generation 04 over the previous generation 03 slide for sodium determinations. A decrease in between-replicate imprecision and a correction of the "serum" assigned values of the calibrators used to calibrate the slide used with the reference fluid account for the improvement. When generation 04/Ektachem results (y) were compared with results obtained with a Beckman ion-selective electrode (x), linear regression statistics were: slope = 0.88, y-intercept = 15.4 mmol/L, and Syx = 2.1 mmol/L. The average fixed bias in comparison with the Beckman electrode decreased from +1.9 mmol/L with generation 03 to -0.6 mmol/L with generation 04 materials. Random error is indicated by a decrease in Syx from 2.8 mmol/L for generation 03 to 2.1 mmol/L for generation 04. Application of Deming's regression, a more accurate portrayal of the generation 04 sodium data set, produces a slope of 1.0 and a y-intercept of -0.6 mmol/L.

摘要

对用于柯达Ektachem 400分析仪的新一代钠检测片及参比液进行评估，结果表明，与上一代（第03代）检测片相比，第04代检测片在钠测定方面性能有所提升。重复检测间不精密度的降低以及用于校准与参比液配套使用的检测片的校准品“血清”赋值的校正，共同促成了这一性能提升。将第04代/Ektachem检测结果（y）与使用贝克曼离子选择电极获得的结果（x）进行比较时，线性回归统计数据为：斜率 = 0.88，y轴截距 = 15.4 mmol/L，且Syx = 2.1 mmol/L。与贝克曼电极相比，平均固定偏差从第03代的 +1.9 mmol/L降至第04代材料的 -0.6 mmol/L。随机误差通过Syx从第03代的2.8 mmol/L降至第04代的2.1 mmol/L得以体现。应用戴明回归（对第04代钠数据集更准确的描述）得出斜率为1.0，y轴截距为 -0.6 mmol/L。