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Water total hardness test solution for aquaculture and aquarium as well as preparation method and use method of test solution

A technology for aquaculture water and testing liquid, which is applied in the direction of using chemical indicators for analysis, chemical reaction of materials for analysis, and material analysis by observing the impact on chemical indicators, etc. It can solve the complex configuration steps and complex testing steps. , drugs are not easy to carry, etc., to achieve the effect of less drug formula composition, convenient factory production, and convenient use

Inactive Publication Date: 2015-01-07
TIANJIN AGRICULTURE COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional hardness testing method is the chrome black T method. During the implementation of this method, there are high technical requirements for operators, the test steps are too complicated, the test results need to be converted by formula, and the medicine is not easy to carry.
At present, there are no relevant patents specifically for the field of aquaculture and aquaculture. Most of the relevant patents are for industrial water, involving many types of drugs, and the configuration steps are more complicated, and the test results still need to be converted by formulas or compared with color plates. to get

Method used

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Examples

Experimental program
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preparation example Construction

[0020] The preparation method of the above-mentioned aquatic products and aquaculture water total hardness test liquid comprises the following steps:

[0021] (1) Weigh 15-30g NH 4 Cl and 100-200ml concentrated ammonia water are mixed with pure water to 500ml;

[0022] (2) Weigh 3.13-6.25g of ethylenediaminetetraacetic acid EDTA;

[0023] (3) The ethylenediaminetetraacetic acid EDTA weighed by (2) is mixed with the NH prepared by (1) 3 -NH 4 Cl solution dissolved;

[0024] (4) Weigh 1-4g of chrome black T, add the solution prepared in (3), and dilute to 1000ml with pure water.

[0025] The above method of using the total hardness test liquid for aquatic products and aquaculture water, by changing the concentration of EDTA in the test liquid or changing the volume of the water sample to be tested, adjust the hardness value represented by each 0.1ml of the test liquid, according to the test Calculate the total hardness of the water body according to the amount of liquid use...

Embodiment 1

[0027] Configuration of the present invention:

[0028] (1) Weigh 15.5gNH 4 CI and 100ml concentrated ammonia water are mixed with pure water to 500ml;

[0029] (2) Take by weighing 6.25g ethylenediaminetetraacetic acid EDTA;

[0030] (3) The ethylenediaminetetraacetic acid EDTA weighed by (2) is mixed with the NH prepared by (1) 3 -NH 4 CI solution dissolved;

[0031] (4) Weigh 1g of Chrome Black T, add the solution prepared in (3), and dilute to 1000ml with pure water.

[0032] The present invention uses: take 5ml of the water sample to be tested, titrate it with a burette, from the beginning of the titration to the discoloration of the water sample, every titration of 0.1ml of the test solution represents an increase of 1 deg in the hardness of the water body. After dropping the test solution, the water sample does not turn red but directly appears light blue, indicating that the hardness of the water sample is extremely low (less than 1 German degree).

[0033] Accor...

Embodiment 2

[0035] Configuration of the present invention:

[0036] (1) Weigh 31gNH 4 CI and 200ml concentrated ammonia water are mixed with pure water to 500ml;

[0037] (2) Take by weighing 6.25g ethylenediaminetetraacetic acid EDTA;

[0038] (3) The ethylenediaminetetraacetic acid EDTA weighed by (2) is mixed with the NH prepared by (1) 3 -NH 4 CI solution dissolved;

[0039] (4) Weigh 2g of Chrome Black T, add the solution prepared in (3), and dilute to 1000ml with pure water.

[0040] Use of the present invention: take 10ml of the water sample to be tested, titrate it with a burette, from the beginning of titration to the discoloration of the water sample, every titration of 0.1ml of the test solution represents an increase of 0.5 degrees of water body hardness. After dropping the test solution, the water sample does not turn red but directly appears light blue, indicating that the hardness of the water sample is extremely low (less than 0.5 German degrees).

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Abstract

The invention discloses a water total hardness test solution for aquaculture and aquarium as well as a preparation method and a use method of the test solution. Every 1,000 ml of the test solution contains 3.13-6.25 g of ethylenediamine tetraacetic acid (EDTA), 15-30 g of ammonium chloride (NH4Cl), 100-200 ml of strong ammonia water with the mass percent concentration of 25%-28%, 1-4 g of chrome black T and the balance of pure water. The reagent is easy to prepare, convenient to use and relatively small in measurement error, can be used for determining the hardness of a water body without a formula or a colorimetric plate, and is suitable for aquaculture and aquarium industries.

Description

technical field [0001] The invention relates to a water hardness test liquid, in particular to a water hardness test liquid for aquaculture and aquariums, a preparation method and a use method thereof. Background technique [0002] Aquatic animals and aquatic animals and plants come from a wide range of sources, especially the hardness of the water body in the latter's origin varies. For many animals and plants, suitable water hardness is a necessary condition for maintaining their healthy growth. Therefore, in the breeding process of some aquatic animals and most of the aquatic animals and plants, especially the high-grade aquatic animals and plants, the hardness of the cultured water body should be checked frequently. [0003] The traditional hardness testing method is the chrome black T method. During the implementation of this method, there are high technical requirements for operators, the test steps are too complicated, the test results need to be converted by formula...

Claims

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Application Information

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IPC IPC(8): G01N31/22G01N21/79
Inventor 董少杰杨广
Owner TIANJIN AGRICULTURE COLLEGE
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