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A method for spot-checking abnormal points in laboratory sample analysis of geochemical census

A sample analysis and geochemical technology, applied in the direction of material inspection products, complex mathematical operations, soil material testing, etc., can solve the problems of insufficient sampling quantity and representativeness, and achieve the effect of solving the insufficient sampling quantity and representativeness

Active Publication Date: 2019-12-10
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method for random inspection of abnormal points in the analysis of samples in geochemical census laboratories, which can solve the abnormal points in the analysis of samples in geochemical census laboratories at the present stage. Sampling quantity and insufficient representativeness of spot checks, to achieve the dual purpose of spot checks of geochemical anomalies and quality control of the whole batch of tests

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  • A method for spot-checking abnormal points in laboratory sample analysis of geochemical census
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  • A method for spot-checking abnormal points in laboratory sample analysis of geochemical census

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Embodiment 1

[0066] This embodiment provides a method for spot check and inspection of abnormal points in sample analysis of a geochemical census laboratory. The flow of the method is as follows figure 1 Shown, including:

[0067] Step 101: Obtain and organize sample data: each area or each batch of samples sent for inspection is divided into multiple batches (or called tasks) for analysis during laboratory testing; the test results of all elements of each batch of samples are obtained , And then remove all the test results of quality control samples, and remove the quality control samples as the analysis batch. Among them, there are quality control samples including external monitoring samples, internal password precision control samples, clear code standard materials, and password duplicate samples. Combine all analysis batches by element to obtain a total sample of each element.

[0068] The test results of the above analysis batch samples can be stored in txt file format, excel file format,...

Embodiment 2

[0116] This embodiment provides a method for spot check and inspection of abnormal points for sample analysis in a geochemical census laboratory. The method is implemented by a compiled EXCEL application file containing VBA (Microsoft Visual Basic for Applications) macro code. The file includes two Basic worksheet, specifically:

[0117] The worksheet "SmpList" is used to store the coding information of the test samples, including serial number, laboratory number, original number, sample lithology, analysis batch, original code sample number, monitoring sample type and detection element information.

[0118] The worksheet "RawData" is used to store the imported sample data of the geochemical survey, including basic sample information, such as analysis number, analysis batch number, and detection results of each element;

[0119] The results are output in multiple new worksheets, which are automatically added during the running of the program.

[0120] This example does not limit the e...

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Abstract

The present invention provides a geochemical reconnaissance laboratory sample analysis outlier selective examination method, which comprises: obtaining and organizing sample data; counting the outliers of various element measurement values, and calculating the means and the mean deviations after the outliers are removed from various elements; carrying out statistics on the distribution and the number of the outlying samples; setting the cumulative frequency distribution intervals of background samples, and carrying out statistics on the distribution and the number of the background samples inthe intervals; dividing into element groups, and carrying out statistics on the abnormal element number of the sample; according to the element groups, carrying out selective examination on the outlier sample; carrying out analysis batch supplementation selective examination; and generating the outlier selective examination analytical task order. According to the present invention, the multi-interval elemental group outlier selective examination method based on geochemical anomaly statistics is provided, integrates the geochemical anomaly selective examination and the laboratory test anomaly selective examination, combines the non-outlier selective examination and the analysis batch supplementation selective examination, can effectively solve the problems of insufficient sampling quantityand insufficient representativeness, and can achieve the dual purposes of geochemical outlier selective examination and whole-batch test quality monitoring.

Description

Technical field [0001] The invention belongs to the field of geochemistry, and relates to a sampling method, in particular to a method for spot check and inspection of abnormal points in a geochemical survey sample laboratory. Background technique [0002] Geological experiment testing is one of the important methods of geochemical prospecting, and the reliability of the test results directly affects the delineation of geochemical anomalies. The abrupt highs and lows in the analysis results represent anomalies in the geochemical map. According to the "Geochemical Census Specification (1:50000)" (DZ / T 0011-2015), "In order to prevent false geochemical maps caused by accidental analysis errors, repeatability inspections should be carried out on the high points and low points of mutations." [0003] The sudden change highs and sudden lows described in the specification are not strictly laboratory test "abnormalities", but refer to geochemical abnormalities. All results need to be map...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24G06F17/18
CPCG01N33/24G06F17/18
Inventor 刘玉龙范俊欣宋佳宇刘思敏
Owner BC P INC CHINA NAT PETROLEUM CORP