Method and device for detecting heavy metal content of soil on basis of tabletting method
A technology of heavy metal and tableting method, which is used in measuring devices, material analysis by optical means, instruments, etc., can solve the problems of immature detection methods, unreliable detection results, long analysis time, etc. Easy to detect and prepare
Inactive Publication Date: 2014-09-10
BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
View PDF5 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Existing testing methods have the following problems: (1) The detection mostly relies on large-scale equipment, which is expensive and needs to be measured under laboratory conditions; (2) Traditional detection methods rely on the principle of atomic absorption / emission spectroscopy, and operator safety factors need to be considered ; (3), soil samples need to be digested by strong acid, and the analysis time is long, which may cause secondary pollution; (4), new detection methods such as electrochemical and biological detection are still immature, and the detection results are not reliable
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0054] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0055] Such as figure 1 As shown, the present invention provides a kind of detection method based on the terahertz spectrum soil heavy metal content of tablet method, and this method comprises:
[0056] S1. Prepare standard soil samples. The soil samples include soil samples whose heavy metal content does not exceed the standard, soil samples containing different types of heavy metals, and soil samples containing heavy metals at different concentrations.
[0057] Step S1 specifically includes the following steps:
[0058] S10, collect soil, and carry out pretreatment, realize air-drying to soil to prevent soil deterioration;
[0059] S11. Detect the heavy metal content of ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and a device for detecting the heavy metal content of soil on the basis of a tabletting method, relating to the technical field of agricultural and environmental detection. The method comprises the following steps of collecting a soil sample with the heavy metal content under the standard, and carrying out pretreatment to prepare a standard soil sample; carrying out tabletting treatment on the standard soil sample to acquire the terahertz pulse time domain waveform of the standard soil sample, and establishing a dactylogram database; comparing the terahertz spectrum of the collected pretreated soil sample to be detected with the dactylogram database of the standard soil sample to acquire the heavy metal data of the soil sample to be detected. According to the method and the device which are disclosed by the invention, the heavy metal pollution of soil samples collected in the field can be detected efficiently, fast, losslessly, safely, qualitatively and quantitatively, and the theory and method basis is provided for the development and research of a terahertz spectrum technology applied to the detection and application technology of the important physical and chemical parameters of farmland soil.
Description
technical field [0001] The invention relates to the technical field of agricultural and environmental detection, in particular to a method and device for detecting heavy metal content in soil based on tableting. Background technique [0002] Soil is an important growth environment for crops, and high-quality soil is an important material basis for ensuring national food and developing "high-yield, high-quality, efficient, ecological, and safe" modern agriculture. In recent years, with the rapid development of the economy, a large number of pollutants from industrial sources, domestic sources, and agricultural chemicals have entered and accumulated in farmland soil through different forms, affecting the quality of agricultural products, and then affecting food safety and ecological environment through the food chain, threatening human beings. healthy. According to online data, since 2009, there have been more than 30 major heavy metal pollution incidents in China. In 2010, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N21/3586
Inventor 陈立平李斌赵春江
Owner BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI