CN106124605A - Measure the method for leachable metal in soil - Google Patents
Measure the method for leachable metal in soil Download PDFInfo
- Publication number
- CN106124605A CN106124605A CN201610547566.5A CN201610547566A CN106124605A CN 106124605 A CN106124605 A CN 106124605A CN 201610547566 A CN201610547566 A CN 201610547566A CN 106124605 A CN106124605 A CN 106124605A
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- Prior art keywords
- soil
- acid
- metal
- hydrochloric acid
- nitric acid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
-
- 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
- G01N1/40—Concentrating samples
- G01N1/4044—Concentrating samples by chemical techniques; Digestion; Chemical decomposition
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- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses the method for leachable metal in soil that measures, it is characterised in that include step: A), soil is added in the mixed liquor of nitric acid and hydrochloric acid；B, heating at 80 115 DEG C DEG C；C), the metal ingredient in analytical solution.The method of leachable metal in soil that measures in the present invention, only uses hydrochloric acid and two kinds of acid of nitric acid, and acid consumption is little, and environmental pollution is little.The inventive method only needs can complete for about 1 hour detection, and the shortest, efficiency is high.The inventive method only detects meeting metal ingredient hurtful to animals and plants, for judging that the metallic pollution situation in soil can provide data more accurately.
Description
Technical field
The present invention relates to measure the method for leachable metal in soil.
Background technology
Containing substantial amounts of metal ingredient in soil.When to remediation contaminated soil, it is necessary first to measure the metal in soil
What composition is, and the content of metal ingredient.One of which method is, uses nitric acid, hydrochloric acid, Fluohydric acid. and perchloric acid to clear up
Soil, measures after being cleared up by the metal ingredient in soil.It is big that this method has sour consumption, big for environment pollution, be easily formed acid
Mist；It addition, the time of process is longer, need 6-8 hour.Soluble metal be only use strong acid perchloric acid, Fluohydric acid. or
The strong acid mixed with both strong acid just can be dissolved out the metal impacting environment from soil, and this metalloid can quilt
Plant, especially crops absorb, and then are transferred in animal bodies, and this metalloid is can metal hurtful to animals and plants
Composition.
Summary of the invention
An object of the present invention is to overcome deficiency of the prior art, it is provided that the mensuration soil of a kind of escapable cost
The method of leachable metal in earth.
For realizing object above, it is achieved through the following technical solutions:
Measure the method for leachable metal in soil, it is characterised in that include step:
A), soil is added in the mixed liquor of nitric acid and hydrochloric acid；
B), heat at 80-115 DEG C DEG C；
C), the metal ingredient in analytical solution.
According to one embodiment of present invention, described hydrochloric acid is (1-2) with the volume ratio of nitric acid: (1-2).
According to one embodiment of present invention, possibly together with water in described hydrochloric acid and nitric acid mixed liquor.
According to one embodiment of present invention, the volumetric concentration of described hydrochloric acid is 10%-30%.
According to one embodiment of present invention, the volumetric concentration of described nitric acid is 5%-20%.
According to one embodiment of present invention, described step B) in, use heating to clear up instrument heating and clear up 30-60 minute.
According to one embodiment of present invention, described step C) in, use icp ms analysis.
Inventor finds through research, and the assay method using nitric acid, hydrochloric acid, perchloric acid and Fluohydric acid. four kinds acid combination will
All metal ingredients in soil all clear up mensuration, are actually unnecessary for administering metallic pollution.Gold in soil
Belong to composition and can be divided into two kinds, one be can not the metal of dissolution, this kind of metal ingredient exists with highly stable form, will not be planted
Thing, especially crops absorb, and therefore it also will not shift in the pure man and animal bodies.Two is leachable metal, this eka-gold
Genus can be by plant, and especially crops absorb, and then are transferred in animal bodies, and this metalloid is to cause damage animals and plants
Metal ingredient.Administering during metallic pollution, it is only necessary to measure the composition of leachable metal, for can not dissolution
Metal ingredient, then without detection.
The method of leachable metal in soil that measures in the present invention, only uses hydrochloric acid and two kinds of acid of nitric acid, and acid consumption is little,
Environmental pollution is little.The inventive method only needs can complete for about 1 hour detection, and the shortest, efficiency is high.The inventive method is only
Detection meeting metal ingredient hurtful to animals and plants, for judging that the metallic pollution situation in soil can provide several
According to.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail:
Embodiment 1
Measure the method for leachable metal in soil, including step:
A), by the nitric acid mixing of the hydrochloric acid of 10 milliliter 20% and 4 milliliter 50%, soil is added the mixing of nitric acid, hydrochloric acid
In aqueous solution；Described hydrochloric acid is 1:1 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 95 DEG C and clear up 45 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 2
Measure the method for leachable metal in soil, including step:
A), by the nitric acid mixing of the hydrochloric acid of 9 milliliter 30% and 4 milliliter 50%, soil is added the mixing water of nitric acid, hydrochloric acid
In solution；Described hydrochloric acid is 1.5:1 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 80 DEG C and clear up 35 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 3
Measure the method for leachable metal in soil, including step:
By the nitric acid mixing of the hydrochloric acid of 10 milliliter 15% and 4 milliliter 70%, soil is added nitric acid, hydrochloric acid mixing water-soluble
In liquid；Described hydrochloric acid is 1:1.87 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 100 DEG C and clear up 50 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 4
Measure the method for leachable metal in soil, including step:
By the nitric acid mixing of the hydrochloric acid of 10 milliliter 37% and 3 milliliter 70%, soil is added nitric acid, hydrochloric acid mixing water-soluble
In liquid；Described hydrochloric acid is 1.76:1 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 110 DEG C and clear up 45 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 5
Measure the method for leachable metal in soil, including step:
By the nitric acid mixing of the hydrochloric acid of 10 milliliter 25% and 4 milliliter 40%, soil is added nitric acid, hydrochloric acid mixing water-soluble
In liquid；Described hydrochloric acid is 1.56:1 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 100 DEG C and clear up 45 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 6
Measure the method for leachable metal in soil, including step:
A), by the nitric acid mixing of the hydrochloric acid of 10 milliliter 30% and 3 milliliter 70%, soil is added the mixing of nitric acid, hydrochloric acid
In aqueous solution；Described hydrochloric acid is 1.43:1 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 95 DEG C and clear up 50 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 7
Measure the method for leachable metal in soil, including step:
A), by the nitric acid mixing of the hydrochloric acid of 10 milliliter 20% and 4 milliliter 70%, soil is added the mixing of nitric acid, hydrochloric acid
In aqueous solution；Described hydrochloric acid is 1:1.4 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 98 DEG C and clear up 40 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
Embodiment 8
Measure the method for leachable metal in soil, including step:
A), by the nitric acid mixing of the hydrochloric acid of 10 milliliter 25% and 3 milliliter 70%, soil is added the mixing of nitric acid, hydrochloric acid
In aqueous solution；Described hydrochloric acid is 1.19:1 with the volume ratio of nitric acid.
B), use heating to clear up instrument to heat at 95 DEG C and clear up 45 minutes.
C), icp ms is used to analyze the metal ingredient in analytical solution.
We use said method to test the standard soil of ERA company of the U.S., use the method detection of example 1-5 respectively,
Relevant result is that ERA1-ERA5 collects and see table, and uses the result that this method records all in the permission of sample from the results of view
Within the scope of, meet the requirements.We use the pedotheque that this method test is actual simultaneously, and in testing result, leachable metal contains
Amount is between 0.1-58.2mg/kg.
The method of leachable metal in soil that measures in the present invention, only uses hydrochloric acid and two kinds of acid of nitric acid, and acid consumption is little,
Environmental pollution is little.The inventive method only needs can complete for about 1 hour detection, and the shortest, efficiency is high.The inventive method is only
Detection meeting metal ingredient hurtful to animals and plants, for judging that the metallic pollution situation in soil can provide several
According to.
Through test, use the result of leachable metal ingredient in the soil of present invention detection, with employing nitric acid, hydrochloric acid, height
Chloric acid and Fluohydric acid. four kinds acid are consistent to the testing result of leachable metal when detecting.
Embodiment in the present invention is only used for that the present invention will be described, is not intended that the restriction to right,
Those skilled in that art it is contemplated that other replacements being substantially equal to, the most within the scope of the present invention.
Claims (7)
1. measure the method for leachable metal in soil, it is characterised in that include step:
A), soil is added in the mixed liquor of nitric acid and hydrochloric acid；
B), heat at 80-115 DEG C；
C), the metal ingredient in analytical solution.
The method of leachable metal in mensuration soil the most according to claim 1, it is characterised in that described hydrochloric acid and nitric acid
Volume ratio be (1-2): (1-2).
The method of leachable metal in mensuration soil the most according to claim 1, it is characterised in that described hydrochloric acid and nitric acid
Possibly together with water in mixed liquor.
The method of leachable metal in mensuration soil the most according to claim 3, it is characterised in that the volume of described hydrochloric acid
Concentration is 10%-30%.
The method of leachable metal in mensuration soil the most according to claim 3, it is characterised in that the volume of described nitric acid
Concentration is 5%-20%.
The method of leachable metal in mensuration soil the most according to claim 1, it is characterised in that described step B) in,
Use heating to clear up instrument heating and clear up 30-90 minute.
The method of leachable metal in mensuration soil the most according to claim 1, it is characterised in that described step C) in,
Use icp ms is analyzed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547566.5A CN106124605A (en) | 2016-07-13 | 2016-07-13 | Measure the method for leachable metal in soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547566.5A CN106124605A (en) | 2016-07-13 | 2016-07-13 | Measure the method for leachable metal in soil |
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| CN106124605A true CN106124605A (en) | 2016-11-16 |
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| CN201610547566.5A Pending CN106124605A (en) | 2016-07-13 | 2016-07-13 | Measure the method for leachable metal in soil |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866046A (en) * | 2012-09-18 | 2013-01-09 | 北京市农林科学院 | Method for determining contents of heavy metals in sample |
| CN103196892A (en) * | 2013-04-02 | 2013-07-10 | 天津虹炎科技有限公司 | Method for measuring metallic element mercury in soil |
| CN103940897A (en) * | 2014-05-13 | 2014-07-23 | 广州金域医学检验中心有限公司 | Method for determining traces of mercury, cadmium, lead and arsenic in food by inductively coupled plasma mass spectrometry (ICP-MS) |
| CN105466752A (en) * | 2016-01-09 | 2016-04-06 | 上海博优测试技术有限公司 | Pretreatment method for determining of heavy metal in soil |
-
2016
- 2016-07-13 CN CN201610547566.5A patent/CN106124605A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866046A (en) * | 2012-09-18 | 2013-01-09 | 北京市农林科学院 | Method for determining contents of heavy metals in sample |
| CN103196892A (en) * | 2013-04-02 | 2013-07-10 | 天津虹炎科技有限公司 | Method for measuring metallic element mercury in soil |
| CN103940897A (en) * | 2014-05-13 | 2014-07-23 | 广州金域医学检验中心有限公司 | Method for determining traces of mercury, cadmium, lead and arsenic in food by inductively coupled plasma mass spectrometry (ICP-MS) |
| CN105466752A (en) * | 2016-01-09 | 2016-04-06 | 上海博优测试技术有限公司 | Pretreatment method for determining of heavy metal in soil |
Non-Patent Citations (3)
| Title |
|---|
| 李囡 等: "不同消解方法对电感耦合等离子体质谱法测定土壤中砷含量的影响", 《广东化工》 * |
| 褚卓栋 等: "高压密闭消解土壤砷-汞-铅-镉酸体系比较", 《中国环境监测》 * |
| 赵朔: "土壤重金属元素分析方法研究", 《中国硕士学位论文全文数据库》 * |
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