Microfluidic Soil Slurry Analysis Without Drying or Grinding
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Solution Overview
Problem
Existing soil sampling processes are inefficient and require drying and grinding of samples, which complicates the analysis and increases processing time.
Innovation Solution
An automated computer-controlled sampling system that processes soil samples in the 'as collected' condition, eliminating the need for drying and grinding, and allows for simultaneous analysis of multiple samples for various chemical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional soil sampling processes are used with drying and grinding steps, then sample preparation is thorough, but processing time is increased and system complexity is increased
Solution Approach 1:
The patent extracts and eliminates the unnecessary drying and grinding steps from the traditional soil sampling process. By directly processing soil samples in their natural state, the system removes time-consuming operations while maintaining analysis accuracy through direct extraction of nutrients and chemicals from fresh soil samples.
Solution Approach 2:
The system implements continuous processing by eliminating the interruption caused by drying and grinding steps. Soil samples are continuously extracted, filtered, and analyzed in an automated flow, maintaining uninterrupted useful action from sample collection to chemical analysis, thereby reducing total processing time.
2Measurement precision
If traditional soil sampling processes with drying and grinding are used, then sample preparation is complete, but device complexity and operational complexity increase
Solution Approach 1:
The patent removes the complex drying and grinding equipment from the system by eliminating the need for these steps entirely. The simplified system only requires extraction, filtration, and analysis components, significantly reducing device complexity while maintaining analytical capability through direct chemical extraction from fresh samples.
Solution Approach 2:
The system replaces mechanical grinding operations with chemical extraction methods. Instead of using mechanical force to grind soil samples, the system uses chemical solutions to directly extract nutrients and compounds from intact soil samples, eliminating the need for mechanical grinding equipment and reducing overall system complexity.
3Measurement precision
If traditional sequential processing is used, then each sample is analyzed thoroughly, but productivity is reduced
Solution Approach 1:
The system maintains continuous processing flow where multiple soil samples are extracted, filtered, and analyzed in sequence without interruption. The automated system keeps reagents flowing continuously and processes samples back-to-back, maximizing productivity while ensuring each sample receives complete chemical analysis through the continuous extraction and filtration process.
Solution Approach 2:
The system performs preliminary extraction and filtration of multiple samples in advance before final analysis. By pre-processing samples through extraction and filtration steps while maintaining them in ready state, the system prepares multiple samples simultaneously for final chemical analysis, increasing throughput without compromising analytical accuracy.
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 enables rapid and continuous processing and analysis of soil samples, improving efficiency and reducing processing time while maintaining accurate chemical analysis.
Implementation Method 1
The slurry is then filtered to produce a clear solution or supernatant
Implementation Method 2
centrifugating or filtering the slurry sample via microporous filter to yield a clear supernatant
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 to produce a sample slurry. The system includes a chemical analysis sub-system which processes and analyzes the prepared slurry for quantifying multiple analytes and/or chemical properties of the sample. The chemical analysis sub-system may be embodied in a multi-layered microfluidic manifold processing substrate comprising microfluidic devices which extract and quantify the concentration of analytes or other chemical parameters associated with the sample. The system can be used to analyze various type of agricultural-related samples including soil, vegetation, manure, milk or other.