Combined detection agent for measuring content of rapidly available potassium in soil

A combined detection and available potassium technology, which is applied in color/spectral characteristic measurement, material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problem of difficult long-term storage and unsatisfactory soil conditions. Quick determination of available potassium content, inconvenient to carry and use and other problems, to achieve the effect of convenient carrying and use, simple and easy preparation, stable and reliable performance

Inactive Publication Date: 2019-01-15
闫宏涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited stability of liquid reagents, the liquid detection reagents used in these determinations are difficult to store for a

Method used

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  • Combined detection agent for measuring content of rapidly available potassium in soil
  • Combined detection agent for measuring content of rapidly available potassium in soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: the preparation of the combined detection agent of measuring soil available potassium content

[0020] (1). 2.5g boric acid and 2.5g sodium chloride are mixed uniformly to obtain a buffer stabilizer;

[0021] (2). 4g sodium tetraphenylborate or lithium tetraphenylborate, 3.2g buffer stabilizer, 3.6g Na 2 EDTA and 0.04g of polyvinylpyrrolidone were mixed uniformly, ground into powder, and packaged into 0.1g / bag to obtain potassium detection powder;

[0022] (3). Pipette 20ml of 37% formaldehyde, mix it with 5ml 0.02mol / L sodium hydroxide solution, and fill it in a plastic drop bottle to obtain a detection masking solution.

[0023] The potassium detection powder is combined with the detection masking liquid to obtain a combined detection agent for measuring soil available potassium content.

Embodiment 2

[0024] Embodiment 2: the preparation of the combined detection agent of measuring soil available potassium content

[0025] (1). 3.6g boric acid and 3g sodium chloride are mixed uniformly to obtain a buffer stabilizer;

[0026] (2). 5g sodium tetraphenylborate or lithium tetraphenylborate, 5g buffer stabilizer, 4.5g Na 2 EDTA and 0.05g of polyvinylpyrrolidone were mixed uniformly, ground into powder, and packaged into 0.1g / bag to obtain potassium detection powder;

[0027] (3). Pipette 20ml of 37% formaldehyde, mix it with 5ml 0.02mol / L sodium hydroxide solution, and fill it in a plastic drop bottle to obtain a detection masking solution.

[0028] The potassium detection powder is combined with the detection masking liquid to obtain a combined detection agent for measuring soil available potassium content.

Embodiment 3

[0029] Embodiment 3: the preparation of the combined detection agent of measuring soil available potassium content

[0030] (1). 4.9g boric acid and 3.5g sodium chloride are mixed homogeneously to obtain a buffer stabilizer;

[0031] (2). 7g sodium tetraphenylborate or lithium tetraphenylborate, 8.4g buffer stabilizer, 6.3g Na 2 EDTA and 0.07g polyvinylpyrrolidone were mixed evenly, ground into powder, and packaged into 0.1g / bag to obtain potassium detection powder;

[0032] (3). Pipette 20ml of 37% formaldehyde, mix it with 5ml 0.02mol / L sodium hydroxide solution, and fill it in a plastic drop bottle to obtain a detection masking solution.

[0033] The potassium detection powder is combined with the detection masking liquid to obtain a combined detection agent for measuring soil available potassium content.

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Abstract

The invention relates to a combined detection agent for measuring the content of rapidly available potassium in soil, and belongs to the technical field of analysis and detection. The combined detection agent for measuring the content of the rapidly available potassium in the soil comprises potassium detection powder and detection masking liquid. During use, the content of the rapidly available potassium in the soil is measured by adopting a portable spectrophotometer or a nephelometer or a visible turbidimetric method only by adding the potassium detection powder and the detection masking liquid into a measurement sample solution. Compared with the prior art, the combined detection agent for measuring the content of the rapidly available potassium in the soil, disclosed by the invention,has the advantages that the preparation method is simple, and the detection agent is stable and reliable in performance, convenient to carry and use and suitable for quick measurement of the content of the rapidly available potassium in the soil.

Description

technical field [0001] The invention relates to a combined detection agent for measuring soil available potassium content, belonging to the technical field of analysis and detection. Background technique [0002] Potassium is an important nutrient necessary for crop growth. It is not only an activator of many enzymes in crops, but also plays a very important role in promoting photosynthesis and respiration of crops, enhancing crop resistance to diseases and resisting adverse growth environments. Potassium deficiency will lead to crop yield and quality decline. Soil available potassium is the source of potassium available to crops in the current season, and it has a good correlation with the content absorbed by crops. Therefore, accurate and rapid determination of soil available potassium content is of great significance and application value for monitoring and evaluating soil nutrient status, crop quality and high yield. [0003] At present, the determination methods of s...

Claims

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Application Information

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IPC IPC(8): G01N21/33G01N21/82
CPCG01N21/33G01N21/82
Inventor 不公告发明人
Owner 闫宏涛
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