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Modeling method of soil heavy metal content detection model and application thereof

A modeling method and technology for detecting models, which are applied in the fields of agriculture and the environment, can solve problems such as difficult to apply to other soils, and achieve the effects of correcting matrix effects, strong universality, and wide adaptability.

Inactive Publication Date: 2009-09-02
北京农产品质量检测与农田环境监测技术研究中心
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Problems solved by technology

However, these methods have a certain scope of application. For soil samples, especially the soil in my country, due to the complex landform and numerous soil types, it is difficult to apply the standard curve established by one soil to other soils.

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  • Modeling method of soil heavy metal content detection model and application thereof
  • Modeling method of soil heavy metal content detection model and application thereof
  • Modeling method of soil heavy metal content detection model and application thereof

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Embodiment Construction

[0035] The specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0036] Such as figure 1 As shown, the modeling method of the soil heavy metal content detection model provided by the present invention includes the steps of: S1, collecting a soil sample; S2, collecting X-ray fluorescence spectroscopy of the sample; S3, measuring the content of the soil sample The reference value of the heavy metal element content to be measured; S4, establish the correction relationship between the fluorescence spectrum and the reference value of the heavy metal element content.

[0037] Wherein, the correction relationship in step S4 is: y i =x(U i X)′B i Q i

[0038] Where y i Is the content of a certain heavy metal element, the vector x is the X-ray fluorescence spectrum of...

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Abstract

The invention discloses a modeling method of a soil heavy metal content detection model and the application thereof. The modeling method includes the steps of collecting a soil sample, collecting the X-ray fluorescence spectrum of the sample, measuring the reference value of heavy metal element content to be measured in the soil sample, and establishing the correcting relation between the X-ray fluorescence spectrum and the reference value of heavy metal element content. The method can simultaneously perform rapid nondestructive examination to various heavy metal element contents of soil, has wide range of application and high universality and provides a technological base for the on-site detection of farmland soil heavy metal pollution.

Description

Technical field [0001] The invention relates to the fields of agriculture and environment, and in particular to a modeling method and application of a soil heavy metal content detection model. Background technique [0002] Soil is the most important natural resource for agricultural production and has a significant impact on the environment. With the rapid development of urbanization and industry, heavy metals, chemical pesticides and other pollutants enter the soil through various channels such as sewage irrigation, atmospheric dust deposition, and landfill disposal. Heavy metals in the soil are not degraded by microorganisms and cannot move easily, so they will continue to accumulate, causing serious pollution. They can also enter the food chain through plant absorption, causing safety and quality hazards to agricultural products and endangering human health. Therefore, monitoring heavy metals in farmland soil has become an important task in environmental protection and a...

Claims

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Application Information

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IPC IPC(8): G01N23/223G06F17/10
Inventor 陆安祥朱大洲韩平潘立刚王纪华李云伏
Owner 北京农产品质量检测与农田环境监测技术研究中心
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