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Potassium ion rapid detection method and kit

A detection kit and detection method technology, which are applied in transmittance measurement, material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc. Suitable for farmers to operate independently, beyond the detection linear range, etc.

Pending Publication Date: 2020-10-27
HONGFENG CHEM GUAN COUNTY HEBEI PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires filtering devices, drying equipment, and electronic balances. At the same time, a series of calculations are required to obtain the results. It takes several hours (more than 4 hours), and it is obviously not suitable for farmers to operate.
In addition, sodium tetraphenylborate can also be used for spectrophotometric turbidimetry. The same as the above principle, after the precipitation of potassium tetraphenylborate is formed, the resulting suspension is used to measure the transmittance with a spectrophotometer. Calculation of potassium content, this method requires the use of a spectrophotometer, and the preparation of reference and reference substance solutions, which is also not suitable for farmers to operate independently
[0006] However, the concentration range of potassium ions in different water bodies is very wide, from a few ppm to thousands of ppm. In the case of uncertain concentrations, the above detection methods often require multiple experiments to obtain results.
For example, when the concentration of potassium ions is high, the precipitation method or turbidity method may have insufficient precipitating agent or exceed the linear range of detection. If the experiment fails, it needs to be re-measured.

Method used

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  • Potassium ion rapid detection method and kit
  • Potassium ion rapid detection method and kit
  • Potassium ion rapid detection method and kit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] Precipitating agent: aqueous solution of sodium tetraphenylborate (10 wt%).

[0114] Measuring rod: such as Figure 4 As shown, there is a scale on the measuring handle 21, and the scale is a unit of length; the scale at the junction of the measuring handle 21 and the measuring marker 22 is 0, the highest scale is 20cm, and the smallest scale unit is 1mm; the measuring marker 22 specifically includes a disc The disc (its radial direction is perpendicular to the measuring handle 21) and two 2cm long vertically intersecting black iron wires (iron wire diameter 1mm) arranged on the disc, these two black iron wires are used as the measurement during the specific detection mark.

[0115] Measuring cup: cylindrical, made of transparent glass, with a diameter of 3cm, a depth of 25cm, and a maximum scale line of 20cm.

[0116] The production process of the measurement table (conversion table):

[0117] Prepare potassium ion standard solutions: 1mg / L, 100mg / L, 1000mg / L respec...

Embodiment 2

[0140] Measuring cup, precipitation agent are all identical with embodiment 1.

[0141] Measuring rod, also is identical with embodiment 1 except the scale on its measuring handle 21.

[0142] In this embodiment, the scale on the measuring handle 21 is set to potassium ion concentration (mg / L).

[0143] The calibration method of the scale on the measuring handle 21 of the present embodiment is basically the same as embodiment 1, and the difference is: prepare different concentration potassium ion standard solutions (1-20mg / L), according to the detection method of embodiment 1 on the measuring handle 21 The scale is calibrated.

[0144] In the detection process, record the length scale on the corresponding measuring handle 21 of each potassium ion standard solution, see the following table 4 with the reading scale (cm) corresponding relation on the measuring handle 21 of embodiment 1:

[0145] Table 4

[0146] Potassium ion concentration (mg / L) Corresponding leng...

Embodiment 3

[0149] With embodiment 1. Use the following conversion formula:

[0150]

[0151] The water sample 1 to be measured is measured: the measurement process is the same as in Example 1, and the scale that intersects with the liquid level of the liquid to be measured on the measuring handle of the measuring stick is 8.2 cm when reading this time and is brought into the above formula to obtain the The potassium ion concentration in water sample 1 is 22÷8.2=2.7mg / L.

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Abstract

The invention relates to a rapid detection technology for potassium ions in a water body, in particular to a potassium ion rapid detection method and a kit. The potassium ion rapid detection kit comprisesa precipitant comprising sodium tetraphenylborate or a solution thereof, a measuring rod which comprises a measuring handle with scales and a measuring marker connected with one end of the measuring handle, andalternatively or additionally comprisesa measuring container. The invention also provides a method for detecting potassium ions in a water body by using the test kit. The potassium ion rapid detection method and the kit provided by the invention can simply and rapidly detect the potassium ions in the water body.

Description

technical field [0001] The invention relates to a rapid detection technology for potassium ions in water bodies, in particular to a method and a kit for rapid detection of potassium ions. Background technique [0002] Potassium ions in water (K + ) is an important indicator of water body, especially for aquaculture, this indicator has extremely important significance. The role of potassium ions on aquatic animals and plants is reflected in many aspects, the most important of which is the ion transporter (Na + -K + -ATPase) plays an important role in regulating the activity. The lack of potassium ions in water often seriously affects the growth and survival of aquatic animals. With the further development of research, the role of potassium ions in aquaculture has also received more and more attention. Therefore, it is an inevitable trend for the development of aquaculture to measure and adjust the concentration of potassium ions in water. However, there is a key factor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/82G01N21/59
CPCG01N21/82G01N21/59
Inventor 潘咏梅章德宏温杰
Owner HONGFENG CHEM GUAN COUNTY HEBEI PROV