CN108279153A - Metal elements in soil digestion procedure - Google Patents
Metal elements in soil digestion procedure Download PDFInfo
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- CN108279153A CN108279153A CN201810012388.5A CN201810012388A CN108279153A CN 108279153 A CN108279153 A CN 108279153A CN 201810012388 A CN201810012388 A CN 201810012388A CN 108279153 A CN108279153 A CN 108279153A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention discloses a kind of metal elements in soil digestion procedures, prepare including sample, sulfuric acid additive amount is quantitative, hydrofluoric acid additive amount is quantitative, the step of soil digestion, rational judgment is done to the sulfuric acid and hydrofluoric acid of resolution needs respectively, the accuracy of the dosage of sulfuric acid and hydrofluoric acid during resolution can be improved, the phenomenon that multiple additive amount that dosage deficiency occurs every time caused by due to not knowing dosage causes operating personnel to adsorb a large amount of smog can then be reduced, the dosage of sulfuric acid and hydrofluoric acid is accurate, the addition of acid can be then completed at least once, oxidation rate is fast.
Description
Technical field
The present invention relates to Soil K+adsorption technical field, more particularly to a kind of metal elements in soil digestion procedure.
Background technology
The content of soil and structure are more complicated, and the content of beary metal in testing soil must disappear to soil
Solution, conventional digestion procedure have wet digestion, high-pressure digestion, micro-wave digestion, dry ashing etc..These methods respectively have advantage and disadvantage.
Wet digestion is in national standard：10ml hydrochloric acid is added after being soaked with water, in low temperature on electric boiling plate in draught cupboard
Heating, make sample preliminary exposition, when evaporate residue 3ml, remove it is slightly cold, then addition 5ml nitric acid, 5ml hydrofluoric acid, 3ml high
Chloric acid heats 1h or so in medium temperature on electric hot plate after capping, then uncaps, and continues heating and removes silicon.It is rinsed with water and did inner wall, and
1ml salpeter solutions are added and ask additional dissolved residue, solution is transferred in 25ml constant volume bottles, it is cooling after constant volume, shake up standby survey, one
As complete resolution process need 8 ~ 10 hours.
Nitric acid, hydrochloric acid, hydrofluoric acid, perchloric acid, which decompose, in whole experiment process generates a large amount of acid mist, if in ventilation condition
Long period of operation can influence the health of operating personnel in the case of bad, and the acid mist of sucking can endanger respiratory tract, endanger operating personnel
Health.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of metal elements in soil resolution side
Method can shorten the reaction time, reduce staff to the sucking of acid mist to reduce the physical effects to staff.
The present invention above-mentioned technical purpose technical scheme is that：A kind of metal elements in soil disappears
Solution method, including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.2 ~ 0.5g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulphur
The additive amount of acid；
Step 3：Separately 0.2 ~ 0.5g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, sentences
Determine the additive amount of hydrofluoric acid；
Step 4：Soil decomposes, and the soil of 0.2 ~ 0.5g is separately taken to be placed in counteracting tank three, and the sulfuric acid that step 2 moderate is added disappears
Solution is transferred in polytetrafluoroethylene (PTFE) crucible after standing 25min, seals, in ventilating kitchen 150 ~ 200 DEG C disappear and boil 15min after
It is slightly cold, perchloric acid is added, so that organic matter is fully decomposed at 200 ~ 250 DEG C, removes slightly cold；
Step 5：It uncaps, the amount of hydrofluoric acid in step 3 is added, heating, 140 ~ 180 DEG C of complete open winged silicon are white to emitting in ventilating kitchen
Cigarette is removed when solution is steamed to 1 ~ 2ml of residue；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 150 ~ 200 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
Through the above technical solutions, in step 1 after soil collection, analyzing the type of soil helps to understand having in soil
The approximate range of the content of machine object and silicate；Then sulfuric acid is added in step 2 into counteracting tank one can primarily determine resolution
The content dosage of the rough sulfuric acid needed in the process；Tentatively disappear in the judgement counteracting tank two that operation in step 3 can be preliminary
The amount of the amount for the hydrofluoric acid that solution preocess substantially needs, the acid mist of the not heated generation of the process is fewer, then selects in step 3
The soil sample resolution for selecting standard, is added the sulfuric acid with step 2 moderate, under conditions of the high oxidative of sulfuric acid, by organic matter carbon
Change, be then added in polytetrafluoroethylene (PTFE) crucible, the operation of heating allows the organic matter of carbonization to clear up, and is added on a small quantity after clearing up 15min
Perchloric acid allow resolution more thoroughly；Then the amount for the hydrofluoric acid being added in step 5 can allow the silicate in soil to be cleared up；Step
The sulfuric acid solution being added in rapid 6 can further wash away down the organic matter on polytetrafluoroethylene (PTFE) crucible edge, further
Dissolving, increase the accuracy of test structure.The amount of sulfuric acid or hydrofluoric acid is maintained at one than calibrated in entire digestion process
The state of true addition reduces actual use and is digested caused by according to repeatedly addition acidic oxidation agent is needed when standard test
Time is long, and digestion time grows the acid mist that can then suck greater amount, and acid mist can influence healthy operator, and in this Shen
The addition of sulfuric acid and hydrofluoric acid is quantified in method please first, perchloric acid subsequently is being added to increase the completeness of resolution, is disappearing
Solution duration is shorter, then can reduce the amount of the acid mist of staff's sucking.
The present invention is further arranged to：Black organic matter is no longer generated when being cleared up in step 2 as the terminal that sulfuric acid is added.
Through the above technical solutions, judge sulfuric acid addition can according to the amount of black organic matter after carbon in soil come
It determines, when the speed for no longer generating black organic matter or generation is slower, stops the addition sulphur that sulfuric acid and record is added at this time
Additive amount of the amount of acid as sulfuric acid, which is not likely to produce a large amount of acid mist, more environmentally friendly.
The present invention is further arranged to：White cigarette is generated when being cleared up in step 3 as the terminal that hydrofluoric acid is added.
Through the above technical solutions, in the addition for judging hydrofluoric acid, there is white cigarette generation by observation, by this
Step can determine out the rough amount that needs are added.
The present invention is further arranged to：It needs often to shake polytetrafluoroethylene (PTFE) crucible after hydrofluoric acid is added in step 5.
Through the above technical solutions, the process shaken can be on the one hand so that reaction be more abundant.
The present invention is further arranged to：Acid-fume absorber is set in the ventilating kitchen.
Through the above technical solutions, will produce a large amount of acid mist in actual digestion process, the acid-fume absorber of setting
The acid mist of a part can be sponged, the content of the acid mist in ventilating kitchen is reduced, then just reduces the sucking of operating personnel's acid mist
Amount.
The present invention is further arranged to：The acid-fume absorber includes absorbing cavity, and absorbing cavity includes netted shell and setting
Filter layer of cloth in netted shell is provided with acid mist acid absorbent in filter layer of cloth.
Through the above technical solutions, acid mist adsorbent can sponge the acid mist of a part, the acid mist in cavity is reduced
Amount, and filter layer of cloth can adsorb the solid particle polluter of a part, with the use of part acid mist can be sponged.
The present invention is further arranged to：The acid mist acid absorbent selects SDG acid gas adsorbents.
Through the above technical solutions, SDG acid gas adsorbents are a kind of solid granular inorganic matters that specific surface area is larger, when
When the acid gas diffusion motion being cleaned in gas reaches the SDG acid gas adsorbent surfaces absorption field of force, just it is fixed on the surface thereof,
Then it is chemically reacted with wherein active constituent, generates a kind of new neutral salt substance and be stored in SDG sorbent structures.
The present invention is further arranged to：The bottom of the absorbing cavity is provided with the lye chamber for being contained with lye.
Through the above technical solutions, the part acid mist that the lye that lye intracavitary is held can not will not adsorbed by acid mist acid absorbent
It neutralizes, then the sulphuric acid mist content in ventilating kitchen then operates safer with regard to less.
The present invention is further arranged to：Lye chamber is provided with opening on the side wall of close over.
Through the above technical solutions, the setting of opening facilitates passing through for acid mist, increase the amount of the acid mist of neutralization.
In conclusion the present invention having the beneficial effect that in contrast to the prior art：
1, rational judgment is done to the sulfuric acid and hydrofluoric acid of resolution needs respectively in step 2 and step 3, the mistake in resolution can be improved
The accuracy of the dosage of sulfuric acid and hydrofluoric acid in journey can then be reduced since dosage deficiency occurs every time caused by uncertain dosage
Multiple additive amount the phenomenon that causing operating personnel to adsorb a large amount of smog, the dosage of sulfuric acid and hydrofluoric acid is accurate, then can be down to
Few primary addition that can complete acid, oxidation rate are fast；
2, the addition of acid-fume absorber can realize the absorption of part acid mist, reduce the concentration of the acid mist in ventilating kitchen, then just
Reduce the soakage of operating personnel.
Description of the drawings
Fig. 1 is the structure chart of the acid-fume absorber of embodiment.
Reference numeral：1, acid-fume absorber；2, absorbing cavity；3, netted shell；4, filter layer of cloth；5, acid mist acid absorbent；6, alkali
Sap cavity；61, it is open.
Specific implementation mode
Invention is further described in detail with reference to embodiments.
Embodiment 1
A kind of metal elements in soil digestion procedure, including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.2g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulfuric acid
Additive amount no longer generates terminal of the black organic matter as addition sulfuric acid when resolution；
Step 3：Separately 0.2g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, judges hydrogen
The additive amount of fluoric acid generates terminal of the white cigarette as addition hydrofluoric acid when resolution；
Step 4：Soil decomposes, and the soil of 0.2g is separately taken to be placed in counteracting tank three, and the Sulfuric-Acid Digestion of step 2 moderate is added, quiet
Be transferred in polytetrafluoroethylene (PTFE) crucible, seal after setting 25min, in ventilating kitchen 150 DEG C disappear boil 15min after it is slightly cold, be added
Perchloric acid makes organic matter fully decompose at 200 DEG C, removes slightly cold；
Step 5：Uncap, be added the amount of hydrofluoric acid in step 3, heating, in ventilating kitchen 140 DEG C of complete open winged silicon to emitting white cigarette,
It is removed when solution is steamed to 1 ~ 2ml of residue, wherein need often to shake polytetrafluoroethylene (PTFE) crucible after hydrofluoric acid is added；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 150 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
The amount of the sulfuric acid and hydrofluoric acid that can be more accurately quantitatively adding using above-mentioned digestion procedure, reduces needs
Repeatedly be added acidic oxidation agent caused by continue heating extend digestion time, caused by operating personnel to suck a large amount of acid mist
Phenomenon.
As shown in Figure 1, to be further reduced the soakage of acid mist, acid-fume absorber 1 is set in draught cupboard, acid mist absorbs
Device 1 includes absorbing cavity 2, and absorbing cavity 2 includes netted shell 3 and the filter layer of cloth 4 being arranged in netted shell 3, is arranged in filter layer of cloth 4
There is acid mist acid absorbent 5.Acid mist acid absorbent 5 selects SDG acid gas adsorbents.It is provided with simultaneously in the bottom of absorbing cavity 2 and is contained with alkali
The lye chamber 6 of liquid, lye selects aqueous sodium carbonate, and lye chamber 6 is provided with multiple openings 61 on the side wall of close over.
The acid in draught cupboard can be reduced by the effect of acid mist acid absorbent 5 and lye chamber 6 jointly in acid-fume absorber 1
The concentration of mist, enhances the safety of operation, while reducing the acid mist being emitted into air, reduces the influence to environment.
Embodiment 2
A kind of metal elements in soil digestion procedure, including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.3g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulfuric acid
Additive amount no longer generates terminal of the black organic matter as addition sulfuric acid when resolution；
Step 3：Separately 0.3g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, judges hydrogen
The additive amount of fluoric acid generates terminal of the white cigarette as addition hydrofluoric acid when resolution；
Step 4：Soil decomposes, and the soil of 0.3g is separately taken to be placed in counteracting tank three, and the Sulfuric-Acid Digestion of step 2 moderate is added, quiet
Be transferred in polytetrafluoroethylene (PTFE) crucible, seal after setting 25min, in ventilating kitchen 160 DEG C disappear boil 15min after it is slightly cold, be added
Perchloric acid makes organic matter fully decompose at 210 DEG C, removes slightly cold；
Step 5：Uncap, be added the amount of hydrofluoric acid in step 3, heating, in ventilating kitchen 150 DEG C of complete open winged silicon to emitting white cigarette,
It is removed when solution is steamed to 1 ~ 2ml of residue, wherein need often to shake polytetrafluoroethylene (PTFE) crucible after hydrofluoric acid is added；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 160 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
Embodiment 3
A kind of metal elements in soil digestion procedure, including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.4g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulfuric acid
Additive amount no longer generates terminal of the black organic matter as addition sulfuric acid when resolution；
Step 3：Separately 0.4g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, judges hydrogen
The additive amount of fluoric acid generates terminal of the white cigarette as addition hydrofluoric acid when resolution；
Step 4：Soil decomposes, and the soil of 0.4g is separately taken to be placed in counteracting tank three, and the Sulfuric-Acid Digestion of step 2 moderate is added, quiet
Be transferred in polytetrafluoroethylene (PTFE) crucible, seal after setting 25min, in ventilating kitchen 170 DEG C disappear boil 15min after it is slightly cold, be added
Perchloric acid makes organic matter fully decompose at 220 DEG C, removes slightly cold；
Step 5：Uncap, be added the amount of hydrofluoric acid in step 3, heating, in ventilating kitchen 160 DEG C of complete open winged silicon to emitting white cigarette,
It is removed when solution is steamed to 1 ~ 2ml of residue, wherein need often to shake polytetrafluoroethylene (PTFE) crucible after hydrofluoric acid is added；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 170 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
Embodiment 4
A kind of metal elements in soil digestion procedure, including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.5g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulfuric acid
Additive amount no longer generates terminal of the black organic matter as addition sulfuric acid when resolution；
Step 3：Separately 0.5g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, judges hydrogen
The additive amount of fluoric acid generates terminal of the white cigarette as addition hydrofluoric acid when resolution；
Step 4：Soil decomposes, and the soil of 0.5g is separately taken to be placed in counteracting tank three, and the Sulfuric-Acid Digestion of step 2 moderate is added, quiet
Be transferred in polytetrafluoroethylene (PTFE) crucible, seal after setting 25min, in ventilating kitchen 180 DEG C disappear boil 15min after it is slightly cold, be added
Perchloric acid makes organic matter fully decompose at 230 DEG C, removes slightly cold；
Step 5：Uncap, be added the amount of hydrofluoric acid in step 3, heating, in ventilating kitchen 160 DEG C of complete open winged silicon to emitting white cigarette,
It is removed when solution is steamed to 1 ~ 2ml of residue, wherein need often to shake polytetrafluoroethylene (PTFE) crucible after hydrofluoric acid is added；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 180 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
Embodiment 5
A kind of metal elements in soil digestion procedure, including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.5g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulfuric acid
Additive amount no longer generates terminal of the black organic matter as addition sulfuric acid when resolution；
Step 3：Separately 0.5g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, judges hydrogen
The additive amount of fluoric acid generates terminal of the white cigarette as addition hydrofluoric acid when resolution；
Step 4：Soil decomposes, and the soil of 0.5g is separately taken to be placed in counteracting tank three, and the Sulfuric-Acid Digestion of step 2 moderate is added, quiet
Be transferred in polytetrafluoroethylene (PTFE) crucible, seal after setting 25min, in ventilating kitchen 200 DEG C disappear boil 15min after it is slightly cold, be added
Perchloric acid makes organic matter fully decompose at 250 DEG C, removes slightly cold；
Step 5：Uncap, be added the amount of hydrofluoric acid in step 3, heating, in ventilating kitchen 180 DEG C of complete open winged silicon to emitting white cigarette,
It is removed when solution is steamed to 1 ~ 2ml of residue, wherein need often to shake polytetrafluoroethylene (PTFE) crucible after hydrofluoric acid is added；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 200 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
Experimental period is analyzed, the digestion time of embodiment 1 ~ 5 is held in 1 ~ 4h.
The above is only the exemplary embodiment of the present invention, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by the attached claims.
Claims (9)
1. a kind of metal elements in soil digestion procedure, it is characterized in that：Including following detecting step：
Step 1：Sample prepares：Soil to be detected is acquired using soil collection device, analysis soil types is to belong to sandy soil, clayey
Soil or loam；
Step 2：It takes 0.2 ~ 0.5g soil to be placed in counteracting tank one, sulfuric acid is added and tentatively clears up the organic matter in soil, judges sulphur
The additive amount of acid；
Step 3：Separately 0.2 ~ 0.5g soil is taken to be placed in counteracting tank two, hydrofluoric acid is added and tentatively clears up the silicate in soil, sentences
Determine the additive amount of hydrofluoric acid；
Step 4：Soil decomposes, and the soil of 0.2 ~ 0.5g is separately taken to be placed in counteracting tank three, and the sulfuric acid that step 2 moderate is added disappears
Solution is transferred in polytetrafluoroethylene (PTFE) crucible after standing 25min, seals, in ventilating kitchen 150 ~ 200 DEG C disappear and boil 15min after
It is slightly cold, perchloric acid is added, so that organic matter is fully decomposed at 200 ~ 250 DEG C, removes slightly cold；
Step 5：It uncaps, the amount of hydrofluoric acid in step 3 is added, heating, 140 ~ 180 DEG C of complete open winged silicon are white to emitting in ventilating kitchen
Cigarette is removed when solution is steamed to 1 ~ 2ml of residue；
Step 6：Sulfuric acid solution is added into polytetrafluoroethylene (PTFE) crucible, in 150 ~ 200 DEG C of dissolved residues；
Step 7：Sample after being cleared up in polytetrafluoroethylene (PTFE) crucible is added in the separatory funnel of 100ml, adds water to about by constant volume
At 50ml, ascorbic acid solution, liquor kalii iodide is separately added, shakes up, it is rear that 5ml hexones, shaking, standing point is added
Layer takes organic phase is standby to survey.
2. metal elements in soil digestion procedure according to claim 1, it is characterized in that：It is no longer produced when being cleared up in step 2
Raw black organic matter is as the terminal that sulfuric acid is added.
3. according to metal elements in soil digestion procedure described in claim 1, it is characterized in that：White cigarette is generated when being cleared up in step 3
As the terminal that hydrofluoric acid is added.
4. metal elements in soil digestion procedure described in claim 1, it is characterized in that：It is needed often after hydrofluoric acid is added in step 5
Shake polytetrafluoroethylene (PTFE) crucible.
5. metal elements in soil digestion procedure described in claim 1, it is characterized in that：Setting acid mist absorbs in the ventilating kitchen
Device (1).
6. the metal elements in soil digestion procedure described in claim 5, it is characterized in that：The acid-fume absorber (1) includes inhaling
Chamber (2) is received, absorbing cavity (2) includes the filter layer of cloth (4) of netted shell (3) and setting in netted shell (3), and filter layer of cloth (4) is interior
It is provided with acid mist acid absorbent (5).
7. the metal elements in soil digestion procedure described in claim 6, it is characterized in that：The acid mist acid absorbent (5) selects SDG
Acid gas adsorbent.
8. the metal elements in soil digestion procedure described in claim 7, it is characterized in that：The bottom of the absorbing cavity (2) is arranged
There is the lye chamber (6) for being contained with lye.
9. metal elements in soil digestion procedure according to any one of claims 8, it is characterized in that：Lye chamber (6) leans on the side wall of close over
On be provided with multiple openings (61).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308034A (en) * | 2019-07-11 | 2019-10-08 | 中国地质大学（武汉） | A kind of device generating waste acid gas for absorbing heavy metal-polluted soil resolution |
| CN113267388A (en) * | 2020-10-27 | 2021-08-17 | 水口山有色金属有限责任公司 | Rapid digestion device and rapid digestion method for lead concentrate |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068195A (en) * | 1991-06-28 | 1993-01-20 | 中国科学院沈阳应用生态研究所 | Soil total nitrogen phosphorus potassium combined digestion method and apparatus |
| CN2458064Y (en) * | 2000-11-13 | 2001-11-07 | 杨士贤 | Drying box |
| US20050170518A1 (en) * | 2003-12-12 | 2005-08-04 | L'oreal | Method for the preparation of a sample for analysis, sample prepared, and method of analysis, and sample analyzed |
| CN101634617A (en) * | 2009-08-18 | 2010-01-27 | 广东省生态环境与土壤研究所 | Digestion method of soil metal elements |
| CN102279123A (en) * | 2011-06-14 | 2011-12-14 | 聚光科技(杭州)股份有限公司 | Pretreatment method and device |
| CN103018083A (en) * | 2012-11-27 | 2013-04-03 | 天津滨海国际花卉科技园区股份有限公司 | Method for detecting heavy metal in plants |
| US20140228452A1 (en) * | 2007-11-15 | 2014-08-14 | The University Of Montana | Hydroxypolyamide gel forming agents |
| CN104713838A (en) * | 2013-12-17 | 2015-06-17 | 国土资源部土地整治中心 | Method for detecting chromium ions in soil |
| CN204649628U (en) * | 2015-01-05 | 2015-09-16 | 力合科技（湖南）股份有限公司 | Reductive agent addition pick-up unit and analyser |
| CN105057339A (en) * | 2015-07-24 | 2015-11-18 | 中国环境科学研究院 | Remedying method for removing chrome in contaminated soil of chromium slag site in situ |
| WO2016139610A1 (en) * | 2015-03-03 | 2016-09-09 | King Abdullah University Of Science And Technology | Methods of analyzing carbon nanostructures, methods of preparation of analytes from carbon nanostructures, and systems for analyzing carbon nanostructures |
| CN106940269A (en) * | 2017-04-01 | 2017-07-11 | 北京赤帝鸿鹄科技有限责任公司 | Acid closure is caught up with counteracting tank decompression |
-
2018
- 2018-01-05 CN CN201810012388.5A patent/CN108279153B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068195A (en) * | 1991-06-28 | 1993-01-20 | 中国科学院沈阳应用生态研究所 | Soil total nitrogen phosphorus potassium combined digestion method and apparatus |
| CN2458064Y (en) * | 2000-11-13 | 2001-11-07 | 杨士贤 | Drying box |
| US20050170518A1 (en) * | 2003-12-12 | 2005-08-04 | L'oreal | Method for the preparation of a sample for analysis, sample prepared, and method of analysis, and sample analyzed |
| US20140228452A1 (en) * | 2007-11-15 | 2014-08-14 | The University Of Montana | Hydroxypolyamide gel forming agents |
| CN101634617A (en) * | 2009-08-18 | 2010-01-27 | 广东省生态环境与土壤研究所 | Digestion method of soil metal elements |
| CN102279123A (en) * | 2011-06-14 | 2011-12-14 | 聚光科技(杭州)股份有限公司 | Pretreatment method and device |
| CN103018083A (en) * | 2012-11-27 | 2013-04-03 | 天津滨海国际花卉科技园区股份有限公司 | Method for detecting heavy metal in plants |
| CN104713838A (en) * | 2013-12-17 | 2015-06-17 | 国土资源部土地整治中心 | Method for detecting chromium ions in soil |
| CN204649628U (en) * | 2015-01-05 | 2015-09-16 | 力合科技（湖南）股份有限公司 | Reductive agent addition pick-up unit and analyser |
| WO2016139610A1 (en) * | 2015-03-03 | 2016-09-09 | King Abdullah University Of Science And Technology | Methods of analyzing carbon nanostructures, methods of preparation of analytes from carbon nanostructures, and systems for analyzing carbon nanostructures |
| CN105057339A (en) * | 2015-07-24 | 2015-11-18 | 中国环境科学研究院 | Remedying method for removing chrome in contaminated soil of chromium slag site in situ |
| CN106940269A (en) * | 2017-04-01 | 2017-07-11 | 北京赤帝鸿鹄科技有限责任公司 | Acid closure is caught up with counteracting tank decompression |
Non-Patent Citations (5)
| Title |
|---|
| SARAH C. JANTZI ET AL: "《Spectrochimica Acta Part B》", 14 November 2015 * |
| 大气质量检测分析方法标准实务手册编委会: "《大气质量检测分析方法标准实务手册 第2卷》", 31 May 2002, 科学技术文献出版社 * |
| 李才广 等: "《分析测试质量控制》", 31 August 1991, 中国医药科技出版社 * |
| 王京文 等: "土壤样品中重金属消解方法的探讨", 《浙江农业科学》 * |
| 罗晓民 等: "《皮革理化分析》", 30 September 2013, 中国轻工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308034A (en) * | 2019-07-11 | 2019-10-08 | 中国地质大学（武汉） | A kind of device generating waste acid gas for absorbing heavy metal-polluted soil resolution |
| CN110308034B (en) * | 2019-07-11 | 2023-12-15 | 中国地质大学（武汉） | Device for absorbing soil heavy metal digestion to generate waste acid gas |
| CN113267388A (en) * | 2020-10-27 | 2021-08-17 | 水口山有色金属有限责任公司 | Rapid digestion device and rapid digestion method for lead concentrate |
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