CN219245369U - Kit for classifying and rapidly detecting chloride ions in compound fertilizer - Google Patents
Kit for classifying and rapidly detecting chloride ions in compound fertilizer Download PDFInfo
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- CN219245369U CN219245369U CN202223497264.1U CN202223497264U CN219245369U CN 219245369 U CN219245369 U CN 219245369U CN 202223497264 U CN202223497264 U CN 202223497264U CN 219245369 U CN219245369 U CN 219245369U
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Abstract
The utility model relates to the field of compound fertilizer detection, in particular to a rapid detection kit for classifying chloride ion content in compound fertilizer, which comprises a kit body, wherein a reaction reagent tube, a push rod and a detection bottle are arranged in the kit body, the reaction reagent tube comprises a tube body, an outlet tube is arranged below the tube body, a valve is arranged on the outlet tube, a filter head is connected below the outlet tube, the filter head is connected with the detection bottle, and the push rod is suitable for the tube body in size. When the method is used, after the fertilizer sample is pretreated and diluted, the fertilizer sample is added into a reaction reagent tube for full concussion reaction, a push rod is installed, a valve below the reaction reagent tube is opened, filtrate is completely dripped into a detection bottle, and precipitation in the bottle is observed to judge the grading condition of the chloride ion content in the compound fertilizer. The kit can rapidly judge the classification type of the chloride ion content of the compound fertilizer, and is simple to operate and small in reagent dosage.
Description
Technical Field
The utility model relates to the field of compound fertilizer detection, in particular to a kit for rapidly classifying and detecting the content of chloride ions in compound fertilizer.
Background
Chloride ion is one of microelements required by plant growth, but excessive chloride ion can cause soil hardening and acidification, and influence the growth of certain crops and the quality of agricultural products, so the chlorine ion content of the compound fertilizer product is controlled in a grading way in China. Wherein, no chlorine is used for marking that the chloride ion content in the fertilizer product is required to be lower than 3 percent, the chloride ion content of the chlorine-containing (low-chlorine) compound fertilizer is required to be lower than 15.0 percent, and the chloride ion content of the chlorine-containing (medium-chlorine) compound fertilizer is required to be lower than 30.0 percent.
At present, the chlorine ion classification of the compound fertilizer is mainly carried out by measuring the chlorine ion content according to the detection standard GB/T24890-2010, then the chlorine ion content is judged, the detection standard is judged based on a titration method, the experimental operation requirement is high, the required reagent is more, the experimental equipment is inconvenient to carry, the operation is carried out in a professional detection laboratory, and the requirement of quick classification detection of the chlorine ion content of a fertilizer sample is difficult to adapt.
Aiming at the problems, the patent develops a related rapid detection kit based on the principle that chloride ions and silver ions generate silver chloride precipitates in GB/T24890-2010 detection standards, and improves the simplicity and convenience of detection of compound fertilizer samples.
Disclosure of Invention
Aiming at the problems of complex operation, large reagent dosage, low efficiency and the like in the detection process of the chloride ions of the compound fertilizer, the utility model provides the kit for rapidly classifying and detecting the chloride ion content in the compound fertilizer, which can rapidly and efficiently judge the chloride ion content level in the compound fertilizer product, and has the advantages of simple and rapid operation and small reagent dosage.
The technical problem to be solved by the utility model is as follows:
the utility model provides a quick detect reagent box of chloride ion classification in compound fertilizer, includes the box body, has placed reagent tube, push rod and detection bottle in the box body, and reagent tube includes the body, and the body below is provided with the outlet pipe, is provided with the valve on the outlet pipe, and the outlet pipe below links has the filter head, and the filter head can be connected with the detection bottle, and the push rod is compatible with body size.
A disposable membranous sealing structure is arranged above the reaction reagent tube, the volume of the reaction reagent tube is 5ml-10ml, and quantitative silver nitrate-nitric acid reaction reagent is arranged in the reaction reagent tube.
The reaction reagent tube is filled with quantitative silver nitrate-nitric acid reaction reagent, and the reagent dosage is designed for compound fertilizers with chloride ion contents of 3%, 15% and 30% respectively.
Preferably, the valve is any one of a butterfly valve, a ball valve and a stop valve.
The filter head is a water system needle type filter head, and the pore size of the filter hole is 0.22 mu m or 0.45 mu m;
the reaction reagent tube and the detection bottle are all sealed in the light-proof packaging layer.
The push rod is matched with the reaction reagent tube, can be plugged into the reaction reagent tube, and pushes the reaction liquid to carry out filtering head, so as to realize precipitation and filtration of the reaction liquid;
the detection bottle is a transparent glass bottle and is preloaded with a silver nitrate-nitric acid reaction reagent.
The detection bottle is individually sealed in a light-proof packaging material.
Preferably, the reaction reagent tube is divided into A, B, 1.695mL of silver nitrate solution (0.05M) +0.305mL of nitric acid solution (1+1) is filled in the A bottle for 3% chloridion detection, 3.39mL of silver nitrate solution (0.05M) +0.3mL of nitric acid solution (1+1) is filled in the B bottle for 15% chloridion detection and 30% chloridion detection, and 0.5-1mL of silver nitrate solution (0.05M) is filled in the detection bottle.
Preferably, the product, not marked "chlorine-containing", is sampled at 2.50g; the product identified as "chlorine (low chlorine)" was sampled at 2.00g; the product identified as "chlorine (medium chlorine)" was sampled at 1.00g. The samples are weighed respectively, added with pure water for 10-30 and mL, mixed for 1min by vortex, and added with pure water for constant volume to 50mL. Opening the sealing structure, accurately sucking 2mL of test solution into the A-type reaction reagent tube for the sample without chlorine, and uniformly mixing; for the samples marked with chlorine (low chlorine) and chlorine (medium chlorine), 1mL of the sample is accurately sucked into a B-type reaction reagent tube and evenly mixed. After full reaction, the lower valve is opened, the push rod is pushed into the reaction reagent tube, the push rod is pushed to filter the reaction liquid to the detection bottle through the filter screen, the brown sticker of the detection bottle is uncovered after uniform mixing, and whether sediment (turbidity) is generated or not is observed. If so, the content of chloride ions in the sample exceeds the standard.
The utility model has the beneficial effects that:
1. the quick grading detection kit for the compound fertilizer chloride ions does not need titration reaction, is simple to operate, is convenient to carry and has wide application scene;
2. the quick grading detection kit for the compound fertilizer chloride ions is based on the principle that chloride ions and silver ions can quickly generate silver chloride precipitates, has less interference in the reaction process, clear precipitation result, accurate detection effect and less reagent consumption.
Drawings
Fig. 1 is a schematic overall structure of embodiment 1.
The figure shows: 1-box body, 2-reaction reagent tube, 21-tube body, 22-valve, 23-filter head, 3-detection bottle and 4-push rod.
Detailed Description
The utility model is further illustrated below in conjunction with examples, but the scope of the utility model as claimed is not limited to the scope expressed by the examples. Modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model. The scope of the utility model is, therefore, indicated by the appended claims.
The device is suitable for the rapid detection of chloride ions in the fields of compound fertilizer production, circulation and detection, and provides three rapid detection schemes for products without marked chlorine, marked chlorine (low chlorine) and marked chlorine (medium chlorine).
Example 1
The utility model provides a quick detect reagent box of chloride ion classification in compound fertilizer, this kit includes box body 1, has placed reagent tube 2, push rod 4 and detection bottle 3 in the box body 1, and reagent tube 2 includes body 21, and body 21 below is provided with the outlet pipe, is provided with valve 22 on the outlet pipe, and the outlet pipe below links has filter head 23, and filter head 23 is connected with detection bottle 3, and push rod 4 is compatible with body 21 size.
A disposable membranous sealing structure is arranged above the reaction reagent tube 2, the volume of the reaction reagent tube 2 is 5ml-10ml, and quantitative silver nitrate-nitric acid reaction reagent is arranged in the reaction reagent tube 2.
The reaction reagent tube 2 is filled with quantitative silver nitrate-nitric acid reaction reagent, and the reagent dosage is designed for compound fertilizers with 3%, 15% and 30% of chloridion content respectively.
Preferably, the valve 22 is a ball valve.
The filter head 23 is a water-based needle-type filter head, and the pore size of the filter pores is 0.22 μm or 0.45 μm;
the reaction reagent tube 2 and the detection bottle 3 are all sealed in a light-proof packaging layer.
The push rod 4 is matched with the reaction reagent tube 2, can be plugged into the reaction reagent tube 2, and pushes the reaction liquid to carry out the filtering head 23, so as to realize the precipitation and the filtration of the reaction liquid;
the detection bottle 3 is a transparent glass bottle and is preloaded with a silver nitrate-nitric acid reaction reagent.
The detection bottle 3 is individually sealed in a light-shielding packaging material.
The specific use process
1. Weighing 2.50g of unidentified chlorine-containing compound fertilizer sample;
2. weighing, adding water 20 and mL, mixing for 1min by vortex, fixing the volume to 50mL, taking out the reaction reagent tube 2 in the light-shielding package, opening a disposable membranous sealing structure above the reaction reagent tube 2, accurately sucking 2mL of the solution into the A-type reaction reagent tube 2 (containing 1.695mL of silver nitrate solution (0.05M) +0.305mL of nitric acid solution (1+1)), and uniformly mixing;
3. after the reaction is completed, the lower valve 22 is opened, the push rod 4 is pushed into the reaction reagent tube 21, the detection bottle 3 is taken out in a light-proof package, the cover of the detection bottle 3 is opened, the push rod 4 is pushed to filter 1-2mL of reaction liquid into the detection bottle 36 (containing 1mL of silver nitrate solution (0.05M)) through the lower filter head 23, and after uniform mixing, the generation of sediment (turbidity) is observed;
4. if precipitation (turbidity) is generated, the chloride ion content in the sample is more than 3.0%, and if no precipitation (turbidity) is generated, the chloride ion content in the sample is less than or equal to 3.0%.
Example 2
The utility model provides a quick detect reagent box of chloride ion classification in compound fertilizer, this kit includes box body 1, has placed reagent tube 2, push rod 4 and detection bottle 3 in the box body 1, and reagent tube 2 includes body 21, and body 21 below is provided with the outlet pipe, is provided with valve 22 on the outlet pipe, and the outlet pipe below links has filter head 23, and filter head 23 is connected with detection bottle 3, and push rod 4 is compatible with body 21 size.
A disposable membranous sealing structure is arranged above the reaction reagent tube 2, the volume of the reaction reagent tube 2 is 5ml-10ml, and quantitative silver nitrate-nitric acid reaction reagent is arranged in the reaction reagent tube 2.
The reaction reagent tube 2 is filled with quantitative silver nitrate-nitric acid reaction reagent, and the reagent dosage is designed for compound fertilizers with 3%, 15% and 30% of chloridion content respectively.
Preferably, the valve 22 is a butterfly valve.
The filter head 23 is a water-based needle-type filter head, and the pore size of the filter pores is 0.22 μm or 0.45 μm;
the reaction reagent tube 2 and the detection bottle 3 are all sealed in a light-proof packaging layer.
The push rod 4 is matched with the reaction reagent tube 2, can be plugged into the reaction reagent tube 2, and pushes the reaction liquid to carry out the filtering head 23, so as to realize the precipitation and the filtration of the reaction liquid;
the detection bottle 3 is a transparent glass bottle and is preloaded with a silver nitrate-nitric acid reaction reagent.
The detection bottle 3 is individually sealed in a light-shielding packaging material.
The specific use process
1. Weighing 2.00g of a sample of the marked chlorine-containing (low chlorine) compound fertilizer;
2. after weighing a sample, adding water 20 and mL, carrying out vortex mixing for 1min, adding pure water to constant volume to 50mL, taking out the reaction reagent tube 2 in the lightproof package, opening a disposable membranous sealing structure above the reaction reagent tube 2, accurately sucking 1mL into the B-type reaction reagent tube 2 (containing 3.39mL of silver nitrate solution (0.05M) +0.3mL of nitric acid solution (1+1)), and uniformly mixing;
3. after the reaction is completed, the lower valve 22 is opened, the push rod 4 is pushed into the reaction reagent tube 2, the detection bottle 3 is taken out in a light-proof package, the cover of the detection bottle 3 is opened, the push rod 4 is pushed to filter 1-2mL of reaction liquid into the detection bottle 3 (containing 1mL of silver nitrate solution (0.05M)) through the lower filter head 23, and after uniform mixing, the generation of sediment (turbidity) is observed;
4. if precipitation (turbidity) is generated, the chloride ion content in the sample is more than 15.0%, and if no precipitation (turbidity) is generated, the chloride ion content in the sample is less than or equal to 15.0%.
Example 3
The utility model provides a quick detect reagent box of chloride ion classification in compound fertilizer, this kit includes box body 1, has placed reagent tube 2, push rod 4 and detection bottle 3 in the box body 1, and reagent tube 2 includes body 21, and body 21 below is provided with the outlet pipe, is provided with valve 22 on the outlet pipe, and the outlet pipe below links has filter head 23, and filter head 23 is connected with detection bottle 3, and the tow bar is compatible with body 21 size.
A disposable membranous sealing structure is arranged above the reaction reagent tube 2, the volume of the reaction reagent tube 2 is 5ml-10ml, and quantitative silver nitrate-nitric acid reaction reagent is arranged in the reaction reagent tube 2.
The reaction reagent tube 2 is filled with quantitative silver nitrate-nitric acid reaction reagent, and the reagent dosage is designed for compound fertilizers with 3%, 15% and 30% of chloridion content respectively.
Preferably, the valve 22 is a butterfly valve.
The filter head 23 is a water-based needle-type filter head, and the pore size of the filter pores is 0.22 μm or 0.45 μm;
the reaction reagent tube 2 and the detection bottle 3 are all sealed in a light-proof packaging layer.
The push rod 4 is matched with the reaction reagent tube 2, can be plugged into the reaction reagent tube 2, and pushes the reaction liquid to carry out the filtering head 23, so as to realize the precipitation and the filtration of the reaction liquid;
the detection bottle 3 is a transparent glass bottle and is preloaded with a silver nitrate-nitric acid reaction reagent.
The detection bottle 3 is individually sealed in a light-shielding packaging material.
The specific using process comprises the following steps:
1. weighing 1.00g of compound fertilizer sample marked with chlorine (middle chlorine);
2. after weighing a sample, adding water 20 and mL, carrying out vortex mixing for 1min, adding pure water to constant volume to 50mL, taking out the reaction reagent tube 2 in the lightproof package, opening a disposable membranous sealing structure above the reaction reagent tube 2, accurately sucking 1mL into the B-type reaction reagent tube 2 (containing 3.39mL of silver nitrate solution (0.05M) +0.3mL of nitric acid solution (1+1)), and uniformly mixing;
3. after full reaction, the lower valve 22 is opened, the push rod 4 is pushed into the reaction reagent tube 2, the detection bottle 3 is taken out in a light-shielding package, the cover of the detection bottle 3 is opened, the push rod 4 is pushed to filter 1-2mL of reaction liquid into the detection bottle 3 through the lower filter head 23, after uniform mixing, the brown sticker of the detection bottle 3 (containing 1mL of silver nitrate solution (0.05M)) is uncovered, and whether sediment (turbidity) is generated or not is observed;
4. if precipitation (turbidity) is generated, the chloride ion content in the sample is more than 30.0%, and if no precipitation (turbidity) is generated, the chloride ion content in the sample is less than or equal to 30.0%.
Claims (8)
1. A kit for rapidly detecting classification of chloride ions in compound fertilizer is characterized in that: the reagent kit comprises a kit body, wherein a reaction reagent tube, a push rod and a detection bottle are placed in the kit body, the reaction reagent tube comprises a tube body, an outlet tube is arranged below the tube body, a valve is arranged on the outlet tube, a filter head is connected below the outlet tube, the filter head is connected with the detection bottle, and the push rod is appropriate to the tube body in size.
2. The kit for rapidly detecting chloride ions in the compound fertilizer according to claim 1, wherein the disposable membranous sealing structure is arranged above the reaction reagent tube, and the volume of the reaction reagent tube is 5ml-10ml.
3. The kit for rapidly detecting chloride ions in the compound fertilizer according to claim 1, wherein the valve is any one of a butterfly valve, a ball valve and a stop valve.
4. The kit for rapid detection of chloride ion classification in a compound fertilizer according to claim 1, wherein the filter head is a water-based needle-type filter head, and the pore size of the filter hole is 0.22 μm or 0.45 μm.
5. The kit for rapidly detecting chloride ions in the compound fertilizer according to claim 1, wherein the reaction reagent tube and the detection bottle are all sealed in a light-proof packaging layer.
6. The kit for rapid detection of chloride ion classification in compound fertilizer according to claim 1, wherein the push rod is matched with the reaction reagent tube, can be plugged into the reaction reagent tube, and pushes the reaction liquid to carry out a filter head, so as to realize precipitation filtration of the reaction liquid.
7. The kit for rapid detection of chloride ions in a compound fertilizer according to claim 1, wherein the detection bottle is a transparent glass bottle preloaded with a reaction reagent.
8. The kit for rapid detection of chloride ion in a compound fertilizer according to claim 7, wherein the detection bottle is individually sealed in a light-proof packaging material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223497264.1U CN219245369U (en) | 2022-12-27 | 2022-12-27 | Kit for classifying and rapidly detecting chloride ions in compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223497264.1U CN219245369U (en) | 2022-12-27 | 2022-12-27 | Kit for classifying and rapidly detecting chloride ions in compound fertilizer |
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| Publication Number | Publication Date |
|---|---|
| CN219245369U true CN219245369U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223497264.1U Active CN219245369U (en) | 2022-12-27 | 2022-12-27 | Kit for classifying and rapidly detecting chloride ions in compound fertilizer |
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| CN (1) | CN219245369U (en) |
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