The theoretical ALPHA coefficient correction of matrix effect has been calibrated both DJ and PH correction models. 采用DJ和PH两种校正模型作理论ALPHA系数校正。
The Problem of Using Alpha Coefficient α系数在使用中存在的问题
Combination of fundamental parameters method and theoretical alpha coefficient method as applied in XRF analysis& a feasible method in practice X荧光分析中基本参数法和理论α系数法的结合&一种可行的实践方法
Theoretical Alpha Coefficient Method for Determination of Major and Minor Elements in Powder Samples by XRF 粉末样品中主、次量元素的XRF法分析&理论α系数与内标校正法
Transformation of Theoretical Alpha Coefficient in X-ray Fluorescence Spectrometry X射线荧光光谱分析中的Alpha系数转换
According to the relationship between Alpha coefficient and homogeneous test, and the relationship among homogeneous test, the parallel test and the essential-τ equivalent test, these three tests, the paper analysis the limitation of using Alpha coefficient to evaluate the reliability of homogeneous test. 从α系数与同质性测验、平行测验和τ-等价测验之间的关系,分析了α系数作为测验同质性信度估计的局限性;
The theoretical alpha coefficients for COLA equation are also calculated. The absorption-enhancement effect for 28 elements is all corrected using theoretical alpha coefficient method. 计算了COLA方程的理论α系数,用于校正28个分析元素的吸收-增强效应。
The matrix effects on absorption and ( enhancement) ( were) corrected by means of PH model and theoretical alpha coefficient. Moreover, the precision and accuracy experiments were performed. 采用PH模式、理论a系数校正基体的吸收增强效应,进行了方法的精密度及准确度试验。
Next, through the pre-testing of the small sample, we take the overall correlation coefficient ( CITC) and alpha reliability coefficient method, delete the terms of the low reliability measurement, form the final questionnaire form for large sample survey. 继而通过小样本预测试,采用总相关系数法(CITC)和a信度系数法,删除低信度的测量条款,形成用于大样本调查的最终问卷。