Analytical methods for repeatability and reproducibility and their applications

An analysis method and repeatability technology, applied in the field of repeatability and reproducibility analysis, can solve the problems that cannot meet the definition requirements, cannot be well applied to repeatability and reproducibility analysis, etc.

Inactive Publication Date: 2019-04-09
南京地质矿产研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] The technical problem solved by the present invention is to overcome the defects that the current design of the test cannot be well applied to the repeatability and reproducibility analysis and the current calculation method of the repeatability limit and the reproducibility limit cannot meet the definition requirements, and provides a Analytical methods for repeatability and reproducibility

Method used

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  • Analytical methods for repeatability and reproducibility and their applications
  • Analytical methods for repeatability and reproducibility and their applications
  • Analytical methods for repeatability and reproducibility and their applications

Examples

Experimental program
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Embodiment 1

[0084] Example 1 Single-level simulation example

[0085] A repeatable and reproducible analytical method comprising the steps of:

[0086] (1) Use the standard detection method to measure the standard substance with an element content of about 5mg / L in the sample, and obtain the data of p = 12 groups of content values, because it is impossible to obtain samples of the same level in 12 qualified laboratories. The measured data of repeated measurement n=10 times, the present embodiment adopts simulated data to carry out, and these simulated data are obtained by simulating measured conditions, basically agree with measured data, those skilled in the art all know that the result that uses these simulated data to obtain is consistent with The measured data are consistent;

[0087] Specifically: Simulate and measure samples at the same level in 12 different laboratories, obtain 12 sets of data, and repeat the measurement 10 times in each laboratory. This example will be described ...

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Abstract

The invention discloses an analysis method of repeatability and reproducibility and an application thereof. The analysis method comprises steps: (1) measuring a certain index of a sample and obtain p groups of valid data of the index, wherein p is a natural number and is larger than or equal to 8; wherein the p groups of the data is obtained by measuring samples in the same level in p different laboratories, each group of the data is obtained by measuring samples in the same level for n times in the same laboratory and n is a natural number and is larger than or equal to 4; measuring result recording: numbering the different laboratories and the data which are repeatedly measured in the same laboratory so that the result of the ith measurement performed on the samples in the same level in the jth laboratory is recorded as xji; and (2) according to the result of the measurement, calculating a repeatability measurement result and a reproducibility measurement result of samples in the same level in each laboratory. According to the invention, requirements on repeatability and reproducibility are fully met and the analysis method is universal.

Description

technical field [0001] The invention relates to a repeatable and reproducible analysis method and its application. Background technique [0002] The research on repeatability and reproducibility has been carried out for more than half a century, and it has been paid more and more attention as the main means of quality control of test results. At present, the method advocated by the international standard ISO-5725 1994 (converted to the domestic GB / T 6379) is generally accepted. After a simple search, there are more than 100 national standards citing ISO-5725 or taking ISO-5725 as the core (referring to national standards with GB at the head). It can be seen that repeatability and reproducibility have a considerable impact on the field of analysis and measurement, and they play a vital role in the field of analysis and measurement. [0003] However, in practical measurement, the existing experimental design and analysis methods for repeatability and reproducibility still ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/215
CPCG06F16/215
Inventor 朱家平沈加林骆宏玉
Owner 南京地质矿产研究所
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