CN105606555A - Method for detecting content of mercury ions in water - Google Patents
Method for detecting content of mercury ions in water Download PDFInfo
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- CN105606555A CN105606555A CN201610135587.6A CN201610135587A CN105606555A CN 105606555 A CN105606555 A CN 105606555A CN 201610135587 A CN201610135587 A CN 201610135587A CN 105606555 A CN105606555 A CN 105606555A
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Abstract
The invention discloses a method for detecting the content of mercury ions in water. By weight, 2-10 parts of 2,6-di-tert-butyl-4-methylphenol, 1-7 parts of diphenol propane, 2-15 parts of sulfamic acid, 5-25 parts of sodium citrate, 1-10 parts of formaldehyde, 1-5 parts of poly propylene glycol, 1-8 parts of polyacrylate, 2-8 parts of zinc sulfate, 1-5 parts of polyamide and 10-28 parts of N,N-dimethyl-p-phenylenediamine are taken, mixed and ground, and a detection reagent A is obtained; a potassium hydroxide solution with the concentration being 2-5 mol/L is prepared, and a detection reagent B is obtained; by weight, 0.1-1.0 part of the detection reagent A is taken, 0.2-2 parts of the detection reagent B and 10-20 parts of water samples to be detected are sequentially added and mixed, after standing is performed for 10-15 min, the absorbancy is detected at the position of 490 nm, and the content of the mercury ions is calculated. The detection method is easy and fast to operate, more sensitive in reaction, high in detection efficiency and small in reagent using amount and conforms to the concept of green chemistry.
Description
Technical field
The present invention relates to detect analysis technical field, specifically the detection method of mercury ion content in a kind of water.
Background technology
Mercury is commonly called as " mercury ", is a kind of element quite rare in the earth's crust. Mankind's activity causes water body mercury pollution, main waste water and waste and old medicine equipment from industrial discharges such as chlor-alkali, plastics, battery, electronics. Mercury is relevant with approach, the mode of chemical form, environmental condition and the intrusion human body of mercury to the harm of health. Mercury metal steam has the diffusivity of height and larger fat-soluble, can be absorbed completely and be transported to whole body through blood by alveolar after invading respiratory tract. Mercury metal in blood, can enter brain tissue by blood-brain barrier, then in brain tissue, is oxidized to mercury ion. Return to blood because mercury ion is more difficult by blood-brain barrier, thereby be accumulated in gradually in brain tissue, infringement brain tissue. Mercury metal in its hetero-organization, also may be oxidized to ionic condition, and transfer in kidney and accumulate. Sulfydryl in mercury ion and body has very strong compatibility, combines as protein and the important enzyme (as cytochrome oxidase, succinate dehydrogenase and lactic dehydrogenase etc.) that participates in substance in vivo metabolism therefore can include material that sulfydryl is maximum with body. The sulfydryl of mercury in enzyme is combined, and can make enzyme lose activity, and is detrimental to health. Drinking water is the requisite daily necessitiess of people, makes the hydrobiological existence of mercury pollution serious threat and the human health of water environment. Therefore very necessary for Quick and the fast detecting of mercury ion in water.
Summary of the invention
The object of the present invention is to provide the detection method of mercury ion content in a kind of simple to operate, quick, reaction is sensitiveer, detection efficiency is high water, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A detection method for mercury ion content in water, comprises the following steps:
1) in weight portion, get 2,6-BHT 2-10 part, diphenol propane 1-7 part, sulfamic acid 2-15 part, natrium citricum 5-25 part, formaldehyde 1-10 part, poly-propyl alcohol 1-5 part, polyacrylate 1-8 part, zinc sulfate 2-8 part, polyamide 1-5 part, P-aminodimethylaniline 10-28 part, mix, grind, obtain detection reagent A;
2) potassium hydroxide solution of preparation 2-5mol/L, must detect reagent B;
3) in weight portion, get and detect reagent A 0.1-1.0 part, add successively and detect reagent B0.2-2 part, water sample 10-20 part to be measured, mix, after standing 10-15min, detect absorbance at 490nm place, calculate mercury ion content.
As the further scheme of the present invention: step 1) in adopt mortar while grinding.
As the further scheme of the present invention: step 1) in grind after particle diameter at 100-200 order.
As the further scheme of the present invention: step 1) in weight portion, get BHT 3-7 part, diphenol propane 2-5 part, sulfamic acid 4-12 part, natrium citricum 8-24 part, formaldehyde 3-8 part, poly-propyl alcohol 1-3 part, polyacrylate 2-5 part, zinc sulfate 3-6 part, polyamide 1-3 part, P-aminodimethylaniline 12-25 part.
As the further scheme of the present invention: step 1) in weight portion, get BHT 4-6 part, diphenol propane 3-4 part, sulfamic acid 6-10 part, natrium citricum 10-20 part, formaldehyde 4-7 part, poly-propyl alcohol 2-3 part, polyacrylate 3-4 part, zinc sulfate 4-5 part, polyamide 2-3 part, P-aminodimethylaniline 15-20 part.
As the further scheme of the present invention: step 2) potassium hydroxide solution of preparation 3mol/L.
As the further scheme of the present invention: step 3) in weight portion, get and detect reagent A 0.1-0.7 part, add successively and detect reagent B0.3-1.5 part, water sample 10-20 part to be measured, mix, after leaving standstill 10-12min, detect absorbance at 490nm place, calculate mercury ion content.
As the further scheme of the present invention: step 3) in weight portion, get and detect 0.5 part of reagent A, detect 15 parts of reagent B1.1 part, water samples to be measured according to adding, mix, detect absorbance at 490nm place, calculating mercury ion content after leaving standstill 12min.
Compared with prior art, the invention has the beneficial effects as follows:
Detection method of the present invention is simple to operate, quick, reacts sensitiveer, and detection efficiency is high, and using amount of reagent is few, meets the theory of Green Chemistry.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, the detection method of mercury ion content in a kind of water, comprises the following steps:
1) in weight portion, get 2,2 parts of 6-BHTs, 1 part of diphenol propane, 2 parts of sulfamic acids, 5 parts of natrium citricums, 1 part, formaldehyde, 1 part of poly-propyl alcohol, 1 part of polyacrylate, 2 parts, zinc sulfate, 1 part of polyamide, 10 parts of P-aminodimethylanilines, mix, adopt mortar to grind, after grinding, particle diameter, at 100 orders, obtains detection reagent A.
2) potassium hydroxide solution of preparation 2mol/L, must detect reagent B.
3) in weight portion, get and detect 0.1 part of reagent A, add successively and detect 10 parts of reagent B0.2 part, water samples to be measured, mix, after standing 10min, detect absorbance at 490nm place, calculate mercury ion content.
Embodiment 2
In the embodiment of the present invention, the detection method of mercury ion content in a kind of water, comprises the following steps:
1) in weight portion, get 2,10 parts of 6-BHTs, 7 parts of diphenol propanes, 15 parts of sulfamic acids, 25 parts of natrium citricums, 10 parts, formaldehyde, 5 parts of poly-propyl alcohol, 8 parts of polyacrylate, 8 parts, zinc sulfate, 5 parts of polyamide, 28 parts of P-aminodimethylanilines, mix, adopt mortar to grind, after grinding, particle diameter, at 200 orders, obtains detection reagent A.
2) potassium hydroxide solution of preparation 5mol/L, must detect reagent B.
3) in weight portion, get and detect 1.0 parts of reagent A, add successively and detect 20 parts of reagent B2 part, water samples to be measured, mix, after standing 15min, detect absorbance at 490nm place, calculate mercury ion content.
Embodiment 3
In the embodiment of the present invention, the detection method of mercury ion content in a kind of water, comprises the following steps:
1) in weight portion, get 2,3 parts of 6-BHTs, 2 parts of diphenol propanes, 4 parts of sulfamic acids, 8 parts of natrium citricums, 3 parts, formaldehyde, 1 part of poly-propyl alcohol, 2 parts of polyacrylate, 3 parts, zinc sulfate, 1 part of polyamide, 12 parts of P-aminodimethylanilines, mix, adopt mortar to grind, after grinding, particle diameter, at 120 orders, obtains detection reagent A.
2) potassium hydroxide solution of preparation 3mol/L, must detect reagent B.
3) in weight portion, get and detect 0.1 part of reagent A, add successively and detect 10 parts of reagent B0.3 part, water samples to be measured, mix, after standing 10min, detect absorbance at 490nm place, calculate mercury ion content.
Embodiment 4
In the embodiment of the present invention, the detection method of mercury ion content in a kind of water, comprises the following steps:
1) in weight portion, get 2,25 parts of 7 parts of 6-BHTs, 5 parts of diphenol propanes, 12 parts of sulfamic acids, 24 parts of natrium citricums, 8 parts, formaldehyde, 3 parts of poly-propyl alcohol, 5 parts of polyacrylate, 6 parts, zinc sulfate, kymene part, P-aminodimethylanilines, mix, adopt mortar to grind, after grinding, particle diameter, at 180 orders, obtains detection reagent A.
2) potassium hydroxide solution of preparation 4mol/L, must detect reagent B.
3) in weight portion, get and detect 0.7 part of reagent A, add successively and detect 20 parts of reagent B1.5 part, water samples to be measured, mix, after standing 12min, detect absorbance at 490nm place, calculate mercury ion content.
Embodiment 5
In the embodiment of the present invention, the detection method of mercury ion content in a kind of water, comprises the following steps:
1) in weight portion, get 2,4 parts of 6-BHTs, 3 parts of diphenol propanes, 6 parts of sulfamic acids, 10 parts of natrium citricums, 4 parts, formaldehyde, 2 parts of poly-propyl alcohol, 3 parts of polyacrylate, 4 parts, zinc sulfate, 2 parts of polyamide, 15 parts of P-aminodimethylanilines, mix, adopt mortar to grind, after grinding, particle diameter, at 140 orders, obtains detection reagent A.
2) potassium hydroxide solution of preparation 3mol/L, must detect reagent B.
3) in weight portion, get and detect 0.5 part of reagent A, detect 15 parts of reagent B1.1 part, water samples to be measured according to adding, mix, after standing 12min, detect absorbance at 490nm place, calculate mercury ion content.
Embodiment 6
In the embodiment of the present invention, the detection method of mercury ion content in a kind of water, comprises the following steps:
1) in weight portion, get 2,20 parts of 6 parts of 6-BHTs, 4 parts of diphenol propanes, 10 parts of sulfamic acids, 20 parts of natrium citricums, 7 parts, formaldehyde, 3 parts of poly-propyl alcohol, 4 parts of polyacrylate, 5 parts, zinc sulfate, kymene part, P-aminodimethylanilines, mix, adopt mortar to grind, after grinding, particle diameter, at 150 orders, obtains detection reagent A.
2) potassium hydroxide solution of preparation 4mol/L, must detect reagent B.
3) in weight portion, get and detect 0.5 part of reagent A, detect 15 parts of reagent B1.1 part, water samples to be measured according to adding, mix, after standing 12min, detect absorbance at 490nm place, calculate mercury ion content.
Get water sample to be measured and mercury-containing waste water and measure by the detection method of embodiment 1-5, measure identical water sample to be measured simultaneously by National Standard Method, result is as table 1:
Table 1
As seen from the results in Table 1, detection reagent dosage of the present invention is few, and detection method is simple to operate fast, is less than 10% with National Standard Method comparison relative error.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form. Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the present invention.
In addition, be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (8)
1. a detection method for mercury ion content in water, is characterized in that, comprises the following steps:
1) in weight portion, get 2,6-BHT 2-10 part, diphenol propane 1-7 part, sulfamic acid 2-15 part, natrium citricum 5-25 part, formaldehyde 1-10 part, poly-propyl alcohol 1-5 part, polyacrylate 1-8 part, zinc sulfate 2-8 part, polyamide 1-5 part, P-aminodimethylaniline 10-28 part, mix, grind, obtain detection reagent A;
2) potassium hydroxide solution of preparation 2-5mol/L, must detect reagent B;
3) in weight portion, get and detect reagent A 0.1-1.0 part, add successively and detect reagent B0.2-2 part, water sample 10-20 part to be measured, mix, after standing 10-15min, detect absorbance at 490nm place, calculate mercury ion content.
2. the detection method of mercury ion content in water according to claim 1, is characterized in that step 1) in adopt mortar while grinding.
3. the detection method of mercury ion content in water according to claim 1, is characterized in that step 1) in grind after particle diameter at 100-200 order.
4. the detection method of mercury ion content in water according to claim 1, it is characterized in that, step 1) in weight portion, get BHT 3-7 part, diphenol propane 2-5 part, sulfamic acid 4-12 part, natrium citricum 8-24 part, formaldehyde 3-8 part, poly-propyl alcohol 1-3 part, polyacrylate 2-5 part, zinc sulfate 3-6 part, polyamide 1-3 part, P-aminodimethylaniline 12-25 part.
5. the detection method of mercury ion content in water according to claim 4, it is characterized in that, step 1) in weight portion, get BHT 4-6 part, diphenol propane 3-4 part, sulfamic acid 6-10 part, natrium citricum 10-20 part, formaldehyde 4-7 part, poly-propyl alcohol 2-3 part, polyacrylate 3-4 part, zinc sulfate 4-5 part, polyamide 2-3 part, P-aminodimethylaniline 15-20 part.
6. the detection method of mercury ion content in water according to claim 1, is characterized in that step 2) preparation 3mol/L potassium hydroxide solution.
7. the detection method of mercury ion content in water according to claim 1, it is characterized in that, step 3) in weight portion, get and detect reagent A 0.1-0.7 part, add successively and detect reagent B0.3-1.5 part, water sample 10-20 part to be measured, mix, after standing 10-12min, detect absorbance at 490nm place, calculate mercury ion content.
8. the detection method of mercury ion content in water according to claim 7, it is characterized in that, step 3) in weight portion, get and detect 0.5 part of reagent A, detect 15 parts of reagent B1.1 part, water samples to be measured according to adding, mix, after standing 12min, detect absorbance at 490nm place, calculate mercury ion content.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107271436A (en) * | 2017-06-05 | 2017-10-20 | 同济大学 | A kind of preparation of quick detection agent for determining Determination of Trace Mercury In Water and application method |
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| CN107271436A (en) * | 2017-06-05 | 2017-10-20 | 同济大学 | A kind of preparation of quick detection agent for determining Determination of Trace Mercury In Water and application method |
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Application publication date: 20160525 |