Systematic errors: detection and correction by means of standard calibration, Youden calibration and standard additions method in conjunction with a method response model

被引：28
|
作者：
Castells, RC
Castillo, MA
机构：
[1] Natl Univ La Plata, Fac Ciencias Exactas, Div Quim Analit, RA-1900 La Plata, Argentina
[2] CIDEPINT, RA-1900 La Plata, Argentina
来源：
ANALYTICA CHIMICA ACTA | 2000年 / 423卷 / 02期
关键词：
systematic errors; Youden calibration; standard additions method; interference; validation;
D O I：
10.1016/S0003-2670(00)01125-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Responses of analytical methods are interpreted by means of a simple algebraic method that considers several contributions. Types of constant and variable systematic errors are unambiguously identified on applying the model to standard calibration, Youden calibration and standard additions method performed in the presence of different matrix effects. Errors detection and composition calculation procedures emerge as mathematical consequences of this simple treatment. Matrix effects of three types are distinguished, and a definition of interference is suggested. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：179 / 185
页数：7
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