CN202962043U - Filter device of potassium permanganate solution in detection of oil and foodstuffs - Google Patents
Filter device of potassium permanganate solution in detection of oil and foodstuffs Download PDFInfo
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- CN202962043U CN202962043U CN 201220696458 CN201220696458U CN202962043U CN 202962043 U CN202962043 U CN 202962043U CN 201220696458 CN201220696458 CN 201220696458 CN 201220696458 U CN201220696458 U CN 201220696458U CN 202962043 U CN202962043 U CN 202962043U
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- foodstuffs
- filter device
- oil
- potassium permanganate
- permanganate solution
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Abstract
The utility model relates to a filter device of potassium permanganate solution in the detection of oil and foodstuffs, and belongs to the technical field of the filter device. The filter device of the potassium permanganate solution in the detection of oil and foodstuffs is characterized by comprising a glass sand core funnel (1), wherein the glass sand core funnel (1) is inserted into a suction flask (3) through a rubber stopper (2) arranged at an opening of the suction flask (3); a latex tubing (4) is arranged at another opening of the suction flask (3); and the other end of the latex tubing (4) is connected with an aspirator pump (5). After the improvement of the filter device disclosed by the utility model, the filter speed is improved; the test time is shortened; the efficiency is improved; and the situation that the concentration of the potassium permanganate solution is basically invariable is also ensured.
Description
Technical field
The utility model relates to the filter of liquor potassic permanganate in a kind of oil and foodstuffs detection, belongs to the filter technical field.
Background technology
In grain, oil plant quality restriction and food inspection, measure the content of microelements of calcium.Calcium is the nutrient of needed by human, wherein 99% concentrates in bone and tooth.In food, the source of calcium is best with Milk and milk products, and vegetables, beans and oilseed calcic are also more.In oil and foodstuffs detected, the content of calcium was measured by oxidimetry.Its principle is
In this process, the preparation of Standard Potassium Permanganate Solution is particularly crucial.In process for preparation, easy and some reducing substanceses reactions generate MnO due to liquor potassic permanganate
2Precipitation so before measuring calcium content, the liquor potassic permanganate for preparing be filtered in funnel, is stored in brown bottle.The existing filter rate of filtration is slow, can make some reducing substanceses reactions in the liquor potassic permanganate for preparing and air, causes solution concentration to reduce, and affects the titration effect.
Summary of the invention
The purpose of this utility model is to solve the deficiency that prior art exists, and provides a kind of rate of filtration fast, and efficient is high, the filter of liquor potassic permanganate during the oil and foodstuffs of assurance liquor potassic permanganate concentration detects.
The utility model is achieved through the following technical solutions:
The filter of liquor potassic permanganate during oil and foodstuffs detects, its special character is to comprise glass sand core funnel 1, glass sand core funnel 1 is by in the rubber stopper 2 grafting bottle,suctions 3 that are arranged on bottle,suction 3 bottle mouth positions, another opening part of bottle,suction 3 is equipped with emulsion tube 4, and the other end of emulsion tube 4 is connected with aspiration pump 5.
The filter of liquor potassic permanganate during the utility model oil and foodstuffs detects, utilize the rate of filtration that the glass sand core funnel filters, aspiration pump bleeds to accelerate liquor potassic permanganate, shorten test period, raise the efficiency, guaranteed that the concentration of liquor potassic permanganate is substantially constant.
Description of drawings
Fig. 1: structural representation of the present utility model.
In figure: 1, glass sand core funnel, 2, rubber stopper, 3, bottle,suction, 4, emulsion tube, 5, aspiration pump.
The specific embodiment
Provide the specific embodiment of the present utility model below in conjunction with accompanying drawing, be used for structure of the present utility model is described further.
The filter of liquor potassic permanganate during oil and foodstuffs detects, with reference to Fig. 1, comprise glass sand core funnel 1, glass sand core funnel 1 is by in the rubber stopper 2 grafting bottle,suctions 3 that are arranged on bottle,suction 3 bottle mouth positions, another opening part of bottle,suction 3 is equipped with emulsion tube 4, and the other end of emulsion tube 4 is connected with aspiration pump 5.
Concrete operations are as follows:
⑴ check whether suction filtration device as shown in the figure leaks gas: get 100mL without CO
2Distilled water pour in Fig. 1 glass sand core funnel, connect device, bleed, observe and whether to leak gas.
⑵ if device is poured the liquor potassic permanganate for preparing in advance in 1 funnel into without gas leak phenomenon, open 5 aspiration pumps and filter on inspection.
Attention: when 1. filtering, first drive aspiration pump after solution, otherwise solution blows back into easily in 4 emulsion tubes;
2. experiment number is too much, easily causes MnO during filtration
2Stop up sand core funnel, cause the rate of filtration too slow.At this moment, take off 1 funnel, with the H of 2% left and right
2O
2Acid solution soak, can remove very soon the MnO on surface
2Precipitation.
Equation: MnO
4 -+ 2H
2O=MnO
2+ 4OH
-
H
2O
2 + MnO
2 + 2H
+= M
n 2++ O
2 + 2H
2O
⑶ be transferred to labelled preservation in the preprepared reagent bottle with potassium permanganate in 3 bottle,suctions.
The utility model utilizes by after improving the rate of filtration that the glass sand core funnel filters, aspiration pump bleeds to accelerate liquor potassic permanganate, shortens test period, raises the efficiency, and has guaranteed that the concentration of liquor potassic permanganate is substantially constant.
Claims (1)
1. the filter of liquor potassic permanganate during oil and foodstuffs detects, it is characterized in that comprising glass sand core funnel (1), glass sand core funnel (1) is by in rubber stopper (2) the grafting bottle,suction (3) that is arranged on bottle,suction (3) bottle mouth position, another opening part of bottle,suction (3) is equipped with emulsion tube (4), and the other end of emulsion tube (4) is connected with aspiration pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696458 CN202962043U (en) | 2012-12-17 | 2012-12-17 | Filter device of potassium permanganate solution in detection of oil and foodstuffs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696458 CN202962043U (en) | 2012-12-17 | 2012-12-17 | Filter device of potassium permanganate solution in detection of oil and foodstuffs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202962043U true CN202962043U (en) | 2013-06-05 |
Family
ID=48503174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696458 Expired - Fee Related CN202962043U (en) | 2012-12-17 | 2012-12-17 | Filter device of potassium permanganate solution in detection of oil and foodstuffs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202962043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421567A (en) * | 2018-05-04 | 2018-08-21 | 肇庆学院 | The filter device of liquor potassic permanganate in a kind of detection of oil and foodstuffs |
| CN112946171A (en) * | 2021-01-18 | 2021-06-11 | 浙江华恒交通建设监理有限公司 | Full-automatic EDTA titration detection method |
-
2012
- 2012-12-17 CN CN 201220696458 patent/CN202962043U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421567A (en) * | 2018-05-04 | 2018-08-21 | 肇庆学院 | The filter device of liquor potassic permanganate in a kind of detection of oil and foodstuffs |
| CN112946171A (en) * | 2021-01-18 | 2021-06-11 | 浙江华恒交通建设监理有限公司 | Full-automatic EDTA titration detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131217 |