Method for quickly determining nitrate content in fruits and vegetables
A technology for rapid determination of nitrate content, applied in the field of inspection and detection, can solve the problems of weak nitrate monitoring, high toxicity of reagents, and difficulty in control, and achieve the effect of daily monitoring, low detection cost and short time required
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0013] The rapid determination method for nitrate content in fruits and vegetables of the present invention comprises the following steps: taking fruit and vegetable samples and crushing, weighing 2 g of homogenate in a 250mL volumetric flask, adding water to shake to constant volume, filtering with filter paper, and reusing the filtrate with a filter membrane Filter to obtain a colorless and transparent solution, take the transparent filtrate to measure its absorbance value at 210 nanometers, and calculate the nitrate content in the fruit and vegetable samples through the nitrate standard curve.
[0014] According to the rapid determination method for nitrate content in fruits and vegetables of the present invention, the filter membrane adopts a filter membrane of 0.2 microns.
[0015] According to the rapid determination method for nitrate content in fruits and vegetables of the present invention, a homogenizer is used for crushing the samples of fruits and vegetables.
Embodiment 2
[0017] On the basis of Example 1, the rapid assay method for nitrate content in fruits and vegetables of the present invention comprises the steps of: taking fruit and vegetable samples and pulverizing them, weighing 10 g of the homogenate in a 250 mL volumetric flask, adding water to shake to constant volume, and using filter paper Filtrate the filtrate with a filter membrane to obtain a colorless and transparent solution, take the transparent filtrate to measure its absorbance value at 210 nanometers, and calculate the nitrate content in the fruit and vegetable samples through the nitrate standard curve.
[0018] According to the rapid determination method for nitrate content in fruits and vegetables of the present invention, the filter membrane adopts a filter membrane of 0.2 microns.
[0019] According to the rapid determination method for nitrate content in fruits and vegetables of the present invention, a homogenizer is used for crushing the samples of fruits and vegetabl...
PUM
Property | Measurement | Unit |
---|---|---|
recovery rate | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com