Mixer-Filter Soil Slurry Preparation for Concurrent Chemical Analysis
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Solution Overview
Problem
Existing soil sampling processes are inefficient as they require drying and grinding of samples, which are time-consuming and labor-intensive, and do not allow for simultaneous analysis of multiple samples.
Innovation Solution
An automated computer-controlled sampling system that processes soil samples in their 'as collected' condition, creating a slurry with water and filtering it for chemical analysis, enabling simultaneous and rapid analysis of multiple samples for various chemical properties without the need for drying and grinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional drying and grinding processes are used for soil sample preparation, then sample analysis accuracy is improved, but processing time and labor intensity increase significantly
Solution Approach 1:
The invention changes the physical state parameters of the sample preparation process by eliminating drying (temperature/time parameter change) and grinding (mechanical energy parameter change). Instead, it uses slurry formation with controlled water-to-soil ratios and chemical extraction methods that work directly with fresh samples, fundamentally altering the preparation parameters to achieve both speed and accuracy.
Solution Approach 2:
The invention extracts only the essential preparation steps needed for accurate analysis while removing unnecessary steps. By taking out the drying and grinding operations and retaining only the critical slurry formation and chemical extraction steps, the system achieves rapid processing without sacrificing analytical precision.
2Measurement precision
If traditional sequential processing methods are used for soil samples, then detailed chemical analysis is achieved, but multiple samples cannot be analyzed simultaneously
Solution Approach 1:
The invention segments the sample processing system into independent, parallelizable units. Each sample receives individual slurry preparation and chemical extraction in separate but simultaneous channels, allowing multiple samples to be processed concurrently while maintaining the detailed chemical analysis capability for each sample.
Solution Approach 2:
The invention performs preliminary slurry formation and chemical extraction steps in advance for multiple samples simultaneously, so that when analysis is needed, all samples are already prepared. This preliminary parallel processing eliminates the sequential bottleneck while preserving analytical precision.
3Productivity
If automated computer-controlled processing is implemented, then analysis speed and consistency are improved, but system complexity increases
Solution Approach 1:
The invention uses universal slurry preparation and chemical extraction protocols that can handle multiple sample types (soil, vegetation, manure) through the same automated system. This multi-functionality reduces the need for sample-specific complex equipment while maintaining high analysis speed and consistency across different materials.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system allows for rapid and efficient analysis of soil samples, as well as other agricultural samples like vegetation and manure, improving the speed and accuracy of nutrient and chemical property determination, thereby optimizing crop production.
Implementation Method 1
a mixer-filter apparatus which mixes the collected raw soil sample in the 'as sampled' condition (e.g. undried and unground) with water to form a sample slurry
Implementation Method 2
The mixer-filter apparatus then filters the slurry during its extraction from the apparatus
Implementation Method 3
centrifugating the slurry sample to yield a clear supernatant
Implementation Method 4
sensing or analysis for detection of the analytes and/or chemical properties such as via colorimetric analysis
Data Source
AI summary
An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the “as collected” condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (i.e. mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The sample preparation and chemical analysis sub-systems can be used to analyze soil, vegetation, and/or manure samples.