Modeling method of soil heavy metal content detection model and application thereof
A modeling method and detection model technology, which is applied in the field of agriculture and the environment, can solve problems that are difficult to apply to other soils, and achieve the effects of correcting matrix effects, strong universality, and wide adaptability
Inactive Publication Date: 2011-06-22
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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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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[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended 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, the modeling method includes the steps: S1, collecting a soil sample; S2, collecting the X-ray fluorescence spectrum of the sample; S3, measuring The reference value of the content of the heavy metal element to be measured; S4, establishing the calibration relationship between the fluorescence spectrum and the reference value of the content of the heavy metal element.
[0037] Wherein, the correction relationship in the 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 ...
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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 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 theX-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 flX-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, hasuorescence 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, haswide range of application and high universality and provides a technological base for the on-site detection of farmland soil heavy metal pollution.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, 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 process of urbanization and the rapid development of industry, pollutants such as heavy metals and chemical pesticides enter the soil through various channels such as sewage irrigation, atmospheric smoke and dust deposition, and landfill disposal. Heavy metals in the soil are not easy to move because they are not degraded by microorganisms, so they will continue to accumulate, causing serious pollution, and can be absorbed into the food chain through plants, causing hidden dangers to the safety and quality of agricultural products and endangering human health. Therefore, monitoring heavy metals in farmland soil has become an import...
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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