CN106706691A - Method for judging heavy metal detection type of portable X-ray fluorescence spectrometry - Google Patents
Method for judging heavy metal detection type of portable X-ray fluorescence spectrometry Download PDFInfo
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- CN106706691A CN106706691A CN201710011831.2A CN201710011831A CN106706691A CN 106706691 A CN106706691 A CN 106706691A CN 201710011831 A CN201710011831 A CN 201710011831A CN 106706691 A CN106706691 A CN 106706691A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
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- G01N2223/076—X-ray fluorescence
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Abstract
The invention discloses a method for judging the heavy metal detection type of a portable X-ray fluorescence spectrometry, wherein the method is mainly designed to judge the metal detection type when heavy metals in soil are detected by using PXRF. The method comprises the following steps: (1) respectively using the portable X-ray fluorescence spectrometry and a standard method for measuring the content of the heavy metals in the soil to obtain a rapid measurement value and a standard method measurement value; (2) calculating evaluation parameters according to the rapid measurement value and the standard method measurement value of the heavy metals obtained in step (1), if the calculated evaluation parameters are in a predetermined threshold range, determining that the heavy metals can be detected directly by the portable X-ray fluorescence spectrometry within a detection range; if the calculated evaluation parameters are not in the predetermined threshold range, determining that the heavy metals cannot be detected directly by the portable X-ray fluorescence spectrometry beyond the detection range.
Description
Technical field
The present invention relates to agricultural and environmental area, a kind of more particularly to heavy metal content in soil quick detection data are commented
Valency method.
Background technology
Soil is the material base of the sustainable development of socio-economy, and relation body health of people and conservation culture are built
If.Heavy metal is the main pollutant of soil, because of its toxicity, not biodegradable and persistence, the harm of heavy metal widely people
Know.Heavy metal can also enter food chain by plant absorption, so as to endanger human health.Therefore, heavy metal-polluted soil is carried out soon
Fast effective detection, for understanding land pollution situation in time, evaluates repairing effect and risk assessment etc. significant.
However, traditional standard soil heavy metal analysis analysis method for example Atomic absorption (AAS), atomic fluorescence (AFS), etc.
Ionomer emission spectrum (ICP-OES) though etc. the degree of accuracy is high, accuracy is good, sample pre-treatments are cumbersome, time and effort consuming, and strong acid
Digestion process there is a possibility that certain danger and pollution, be normally only used for lab analysis.Traditional detection method
Disadvantages mentioned above limits the development of extensive soil monitoring work, it is impossible to accomplish that quick, real-time soil parameters is dynamically monitored.With
Compare, many advantages, such as x ray fluorescence spectrometry (XRF) has quick, accurate, economical and effective and real-time detection in situ,
The content of beary metal for being widely used in the materials such as alloy, plastics is determined.
Application for XRF in environmental monitoring, particularly to the detection of soil, numerous scholars are studied, the U.S.
EPA also formulated the standard method using constituent content in XRF in-site detecting soils and sediments, it is stipulated that the use model of instrument
Enclose and method.By the miniaturization to instrument, portable X-Ray Fluorescence spectroscopic methodology (PXRF) detection is in heavy metal in soil pollution
Application in terms of monitoring is just in the ascendant, but Method means are not perfect.Soil is relative to the object to be measured such as alloy, plastics, sample
Product composition is more complicated, and the matrix that the physical state of sample and the element in addition to analytical element are constituted exists huge to measurement
Interference.In practical study and engineering project, PXRF has been directly used in the measure of heavy metal-polluted soil, but in testing result
Heavy metal analysis data accuracy (that is, using PXRF directly to a certain Soils In The Region heavy metal analysis when, obtain which kind of weight
The detection data of metal is accurately, can directly be detected using PXRF) there is no the complete, decision method of specification.
The content of the invention
Regarding to the issue above, the Portable X that a kind of which kind of heavy metal of judgement of present invention offer can directly be determined by PXRF is penetrated
Line fluorescence spectrum heavy metal analysis species determination methods.
To reach above-mentioned purpose, a kind of portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods, including with
Lower step：
Step (1)：The content of beary metal in soil is determined with portable X-Ray Fluorescence spectroscopic methodology and standard method respectively to obtain
Obtain quick measured value and standard method measured value；
Step (2)：The quick measured value of content of beary metal and standard method measured value meter according to obtained in step (1)
Evaluating is calculated, if the evaluating being calculated is in predetermined threshold range, it is determined that the heavy metal species are in detection range
It is interior, it can directly be detected with portable X-Ray Fluorescence spectroscopic methodology；If the evaluating being calculated is not in predetermined threshold
In the range of value, it is determined that the heavy metal species are not in detection range, it is impossible to it is directly entered with portable X-Ray Fluorescence spectroscopic methodology
Row detection.
Further, in the step (2), the quick measured value of content of beary metal according to obtained in step (1) and
Standard method measured value Calculation Estimation parameter, including single sample computational methods and multiple sample computational methods, specially：
Single sample computational methods are as follows：The quick measured value and standard method for obtaining single sample repeated detection are determined
Value, according to quick measured value and mask method measured value accuracy in computation, precision and detection limit, the result that will be calculated point
It is not compared with the default degree of accuracy, default precision and default detection limit, heavy metal analysis is judged according to comparative result
Species；
Multiple sample computational methods are as follows：The quick measured value and standard method measured value of each sample are obtained, according to fast
Fast measured value and standard method measured value accuracy in computation, precision and detection limit, the result for arriving that will be calculated respectively with it is default
The degree of accuracy, default precision and default detection limit be compared, heavy metal analysis species is judged according to comparative result.
Further, multiple sample computational methods also include：Built respectively according to quick measured value and standard method measured value
Vertical regression model simultaneously calculates regression model index；The regression model index that will be calculated respectively with default regression model index
It is compared, the detection species of heavy metal is judged according to comparative result.
Further, the degree of accuracy is error of the quick measured value relative to standard method measured value, its computing formula
For：%D=(Dp-Dh) * 100%/Dh, wherein %D represents the degree of accuracy or the rate of recovery, DpFor heavy metal-polluted soil quickly determines number
According to DhData are surveyed by standard method；
The accuracy computation is concretely comprised the following steps：Replication tries to achieve standard deviation at least three times, and its computing formula is：P=
STDEV(n1,n2,n3…)；
What the detection limit was calculated concretely comprises the following steps, replication cleaning sample, determines number of times and is no less than seven times, according to survey
Determine result and calculate standard deviation, then calculate and try to achieve 3 times of standard deviation, computing formula is：D=3*STDEV (n1, n2, n3, n4, n5,
n6,n7…)。
Further, the regression model index includes coefficient of determination r2With relative standard deviation RSD, default evaluation refers to
It is designated as：r2>=0.75, RSD≤20%；The coefficient of determination and relative standard deviation that will be calculated refer to default evaluation respectively
Mark is compared, if the coefficient of determination being calculated and relative standard deviation while meet evaluation index, judge the quality of data
It is quantitative；If be calculated evaluation index meet preset evaluation index number be less than or equal to one when, judge data matter
Measure as qualitative, wherein the formula for calculating the coefficient of determination is：
Calculate relative standard deviation formula be：
Further, the processing method of the X-ray fluorescence spectra data to obtaining also includes spectral manipulation and stoichiometry
Method is modeled.
Further, when sample is for multiple, the processing mode to sample is method of random sampling collecting part sample, Ran Houying
The content of beary metal in sample is detected with standard method.
Further, the heavy metal element includes the one kind or several in arsenic, cadmium, chromium, copper, iron, mercury, manganese, nickel, lead and zinc
Kind.
After measure using portable X-Ray Fluorescence spectroscopic methodology to heavy metal-polluted soil of the invention, to the number for detecting
According to carrying out comprehensive quality judgement, it is determined that the detection species of heavy metal, it is determined that the use model of portable X-Ray Fluorescence spectroscopic methodology
Enclose, corresponding heavy metal can be detected using Portable fluorescence spectroscopic methodology directly, contribute to portable X-Ray Fluorescence spectrum
Method determines the popularization of heavy metal-polluted soil, for the quick detection in situ of heavy metal pollution of soil provides technical support.
Brief description of the drawings
Fig. 1 is quality testing schematic flow sheet of the present invention.
Fig. 2 is linear regression model (LRM) and ideal model of the PXRF measured values of the present invention with AAS/AFS measured values.
Specific embodiment
With reference to Figure of description, the present invention will be further described.
A kind of portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods of the present invention, comprise the following steps：Step
Suddenly (1)：The content of beary metal determined with portable X-Ray Fluorescence spectroscopic methodology and standard method respectively in soil obtains quick measure
Value and standard method measured value；
Step (2)：The quick measured value of content of beary metal and standard method measured value meter according to obtained in step (1)
Evaluating is calculated, if the evaluating being calculated is in predetermined threshold range, it is determined that the heavy metal species are in detection range
It is interior, it can directly be detected with portable X-Ray Fluorescence spectroscopic methodology；If the evaluating being calculated is not in predetermined threshold
In the range of value, it is determined that the heavy metal species are not in detection range, it is impossible to it is directly entered with portable X-Ray Fluorescence spectroscopic methodology
Row detection.
In the step (2), the quick measured value of content of beary metal and standard method according to obtained in step (1) are surveyed
Fixed value calculation evaluating, including single sample computational methods and multiple sample computational methods, specially：
Single sample computational methods are as follows：The quick measured value and standard method for obtaining single sample repeated detection are determined
Value, according to quick measured value and mask method measured value accuracy in computation, precision and detection limit, the result that will be calculated point
It is not compared with the default degree of accuracy, default precision and default detection limit, heavy metal analysis is judged according to comparative result
Species.Wherein, the evaluating includes the degree of accuracy, precision and detection limit, and the degree of accuracy refers to accuracy of measurement, reflection
Be measured value relative error, smaller then the surveyed the data precision of result of calculation absolute value is high, on the contrary result of calculation absolute value
The degree of accuracy of more big then surveyed data is just low, and the positive and negative of checkout result represents that the method measured value is larger and smaller than compared with standard respectively
Method measured value.20% can be less than as boundary with absolute value, the higher the better for the degree of accuracy in practical application；Accuracy refers to measurement essence
Degree, the more big then accuracy of result of calculation is low, otherwise the smaller then precision of result of calculation is higher.Accuracy gets over Gao Yue in practical application
It is good；Detection limit refers to measurement detection lower limit, reflects the sensitivity of the detection technique, when measured target element is less than minimum detection
When limit, the technology cannot detect it, thus the more low then method of result of calculation applicability is stronger in actual applications；
Multiple sample computational methods are as follows：The quick measured value and standard method measured value of each sample are obtained, according to fast
Fast measured value and standard method measured value accuracy in computation, precision and detection limit, the result for arriving that will be calculated respectively with it is default
The degree of accuracy, default precision and default detection limit be compared, heavy metal analysis species is judged according to comparative result；
During multiple samples, also including setting up PXRF measured values with the Linear Regression Model in One Unknown between standard method measured value.
If needing carry out data conversion to data in advance it is assumed that data disobey normal distribution in order to meeting Linear Regression Model in One Unknown.
Then according to the coefficient of determination (r2) and relative standard deviation (RSDm) evaluate the quality of data of the quick measured value of each heavy metal,
Evaluation criterion such as table 1.Wherein model relative standard deviation (RSDm) got divided by prediction mean value computation by residual error standard deviation.Model
For：In Y=a+bX+c formulas, Y represents quick measured value, and X represents standard method measured value, and a representative model intercepts, b represents slope,
C represents residual error.After being calculated above-mentioned parameter, the table of comparisons 1, when the coefficient of determination and relative standard deviation being calculated are simultaneously full
Sufficient evaluating, i.e. (1) r2>=0.75, (2) RSDmWhen≤20%, then the quality of data is judged as quantitative, otherwise, data are only fixed
Property level；Further, if the quality of data is quantitative, it is determined that the heavy metal species can use Portable X-ray in detection range
Fluorescent spectrometry is directly detected to it；If the quality of data is for qualitative, it is determined that the heavy metal species not in detection range, no
It can directly be detected with portable X-Ray Fluorescence spectroscopic methodology.
Wherein, spectral manipulation and stechiometry are modeled also to be included to the X-ray fluorescence spectra data for being obtained.It is described heavy
Metallic element includes arsenic, cadmium, chromium, copper, iron, mercury, manganese, nickel, lead and zinc.
Wherein, sample collection is with process step：Sample picks up from Suzhou City of Jiangsu Province, 53 altogether, in the original location with portable
Formula X ray fluorescence spectrometry is determined, and substantially step is as follows：Three to five points are selected first in the range of 3-5m around sampling point, is used
Stainless steel shovel scoops up top layer (0-15cm) soil.If using PXRF in-site detectings, being removed after mixing should be broken into pieces on plastic cloth
Stone, plant and animal residues etc., one layer of preservative film is covered after compacting, pressing.Remaining sample air-dries through room temperature, grind after, mistake successively
10 mesh and 100 mesh nylon mesh, are placed in valve bag and preserve to be measured.
Heavy metal-polluted soil determines detailed process：PXRF situ Rapid Determinations：Instrument shifts to an earlier date preheating in 10-15 minutes, determines
When PXRF probe verticals are aligned and soil surface is contacted, be repeated 3 times, minute 90 seconds.PXRF experimental determinations：Handle well
Pedotheque be fitted into specimen cup, wheat membrane is covered with after compression, specimen cup is placed on instrument monitor station and is tested.Determine
90 seconds time, it is repeated 3 times.Standard method is determined：The heavy metals such as cadmium, chromium, copper, nickel, lead and zinc are through HNO3-HClO4- HF disappears completely
Aas determination is used after solution, arsenic and mercury are through 1：1 chloroazotic acid uses Atomic Fluorescence Spectrometry after clearing up.
Detection limit is calculated：One-level Soil standard value is sieved as standard with standard of soil environment quality (GB15618-1995)
(the AAS/AFS measured values of Cu, Pb, As, Cr, Ni and Zn are respectively 23.9mg/kg, 26.3mg/ to select the sample of cleanliness without any pollution
Kg, 11.0mg/kg, 78.2mg/kg, 38.7mg/kg and 66.3 mg/kg) used as blank sample, replication 7 times takes its mark
3 times of quasi- deviation obtain detection limit respectively Cu of the XRF methods in this area to each heavy metal element：10.6mg/kg, Pb：8.1mg/
Kg, As：5.7mg/kg, Cr：22.5mg/kg, Ni：21.6mg/kg, Zn：10.4mg/kg.
Accuracy is calculated：By taking the cleaning sample as an example, it is repeated three times, tries to achieve standard deviation, Cu：1.82mg/kg, Pb：
2.08mg/kg, As：0.883mg/kg, Cr：9.54mg/kg, Ni：8.14mg/kg, Zn：2.33mg/kg.
The degree of accuracy is calculated：By taking the cleaning sample as an example, the degree of accuracy, Cu are tried to achieve：58.0%, Pb：- 12.2%, As：
8.01%, Cr：53.5%, Ni：35.7%, Zn：- 9.62%.
Multiple sample regression models judge：PXRF measured values with AAS/AFS measured values linear regression model (LRM) and ideal
Model (y=x) is as shown in Figure 2.The in-site detecting value of each heavy metal element PXRF is generally below AAS/AFS measured values, but both
Between there is preferable correlation, the correlation between laboratory PXRF measured values and AAS/AFS measured values is worth better than in situ.By soil
The influence of the factors such as earth moisture, land use pattern, artificial disturbance, the PXRF original positions more indoor value of Distribution value is more discrete.
The r of binding model2With RSDmIt was found that Cr, Ni and Zn reach quantitative level during PXRF in-site detectings, but Pb, Cu and As can only obtain
Qualitative results (table 2).Laboratory PXRF is determined including including Cu, the r of Pb, Cr, Ni and Zn2Increased, and all reach
Quantitative level, but the As qualities of data are still relatively low (table 3).
The quality testing standard of table 1
The quality of data of each heavy metal element of table 2PXRF in-site detectings
The quality of data of each heavy metal element of table 3PXRF experimental determinations
After measure using portable X-Ray Fluorescence spectrum to heavy metal-polluted soil of the invention, to the data for detecting
Carry out comprehensive quality judgement, it is determined that the detection species of heavy metal, it is determined that the use scope of portable X-Ray Fluorescence spectrum,
Corresponding heavy metal can be detected using Portable fluorescence spectroscopic methodology directly, contribute to portable X-Ray Fluorescence spectroscopic methodology
The popularization of heavy metal-polluted soil is determined, for the quick detection in situ of heavy metal pollution of soil provides technical support.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (8)
1. a kind of portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods, it is characterised in that including following step
Suddenly：
Step (1)：The content of beary metal determined with portable X-Ray Fluorescence spectroscopic methodology and standard method respectively in soil obtains fast
Fast measured value and standard method measured value；
Step (2)：The quick measured value of content of beary metal and standard method measured value according to obtained in step (1) are calculated to be commented
Valency parameter, if the evaluating being calculated is in predetermined threshold range, it is determined that the heavy metal species in detection range, energy
It is directly detected with portable X-Ray Fluorescence spectroscopic methodology；If the evaluating being calculated is not in predetermined threshold value model
In enclosing, it is determined that the heavy metal species are not in detection range, it is impossible to it is directly examined with portable X-Ray Fluorescence spectroscopic methodology
Survey.
2. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis scope determination methods according to claim 1, its feature exists
In：In the step (2), the quick measured value of content of beary metal and standard method measured value according to obtained in step (1)
Calculation Estimation parameter, including single sample computational methods and multiple sample computational methods, specially：
Single sample computational methods are as follows：The quick measured value and standard method measured value of single sample repeated detection are obtained,
According to quick measured value and mask method measured value accuracy in computation, precision and detection limit, the result difference that will be calculated
It is compared with the default degree of accuracy, default precision and default detection limit, heavy metal analysis kind is judged according to comparative result
Class；
Multiple sample computational methods are as follows：The quick measured value and standard method measured value of each sample are obtained, according to quick survey
Definite value and standard method measured value accuracy in computation, precision and detection limit, will calculate the result for arriving respectively with default standard
Exactness, default precision and default detection limit are compared, and heavy metal analysis species is judged according to comparative result.
3. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis scope determination methods according to claim 2, its feature exists
In multiple sample computational methods also include：Regression model is set up respectively according to quick measured value and standard method measured value and is counted
Calculate regression model index；The regression model index that will be calculated is compared with default regression model index respectively, according to
Comparative result judges the detection species of heavy metal.
4. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods according to claim 2, its feature exists
In,
The degree of accuracy is error of the quick measured value relative to standard method measured value, and its computing formula is：%D=(Dp-
Dh) * 100%/Dh, wherein %D represents the degree of accuracy or the rate of recovery, DpIt is the quick determination data of heavy metal-polluted soil, DhFor standard side
Method surveys data；
The accuracy computation is concretely comprised the following steps：Replication tries to achieve standard deviation at least three times, and its computing formula is：P=STDEV
(n1,n2,n3…)；
What the detection limit was calculated concretely comprises the following steps, replication cleaning sample, determines number of times and is no less than seven times, is tied according to determining
Fruit calculates standard deviation, then calculates and try to achieve 3 times of standard deviation, and computing formula is：D=3*STDEV (n1, n2, n3, n4, n5, n6,
n7…)。
5. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods according to claim 3, its feature exists
In the regression model index includes coefficient of determination r2With relative standard deviation RSD, default evaluation index is：r2>=0.75,
RSD≤20%；The coefficient of determination and relative standard deviation that will be calculated are compared with default evaluation index respectively, if meter
The coefficient of determination and the relative standard deviation that obtain then judge the quality of data as quantitative while meet evaluation index；If calculating
When the number for meeting preset evaluation index to evaluation index is less than or equal to one, then judge the quality of data as qualitative.
6. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods according to claim 1, to what is obtained
The processing method of X-ray fluorescence spectra data also includes that spectral manipulation and stechiometry are modeled.
7. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods according to claim 2, its feature exists
In when sample is for multiple, the processing mode to sample is method of random sampling collecting part sample, and then application standard method is detected
Content of beary metal in sample.
8. portable X-Ray Fluorescence spectroscopic methodology heavy metal analysis species determination methods according to claim 1, its feature exists
In：The heavy metal element includes one or more in arsenic, cadmium, chromium, copper, iron, mercury, manganese, nickel, lead and zinc.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107909192A (en) * | 2017-11-01 | 2018-04-13 | 北京农业质量标准与检测技术研究中心 | The estimating and measuring method and device of heavy metal content in soil |
| CN109060858A (en) * | 2018-09-17 | 2018-12-21 | 中国科学院地理科学与资源研究所 | A kind of quantitative evaluation method of heavy metal-polluted soil concentration space forecast of distribution accuracy |
| CN109668916A (en) * | 2018-12-11 | 2019-04-23 | 大连理工大学 | A kind of hydrate sediment CT Triaxial tester |
| CN109839395A (en) * | 2018-07-25 | 2019-06-04 | 中国环境科学研究院 | Soil pollutant analysis method, device, equipment and system |
| CN110873727A (en) * | 2018-09-04 | 2020-03-10 | 河北地质大学 | XRF-based analysis method for in-situ determination of water body metals |
| CN111458361A (en) * | 2020-01-06 | 2020-07-28 | 中国地质大学（北京） | Portable XRF-based method for measuring content of elements in leech |
| CN111610207A (en) * | 2020-05-29 | 2020-09-01 | 中交 (天津) 生态环保设计研究院有限公司 | Heavy metal contaminated soil horizon division method based on portable spectral analysis |
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| CN112649454A (en) * | 2019-10-09 | 2021-04-13 | 清华苏州环境创新研究院 | Method for detecting concentration of heavy metal in liquid |
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| CN116297304A (en) * | 2023-03-10 | 2023-06-23 | 广东建研环境监测股份有限公司 | Soil heavy metal detection method and device based on chemical environment |
| CN116539648A (en) * | 2023-05-08 | 2023-08-04 | 广东省环境科学研究院 | XRF detection-based substance toxicity detection method and XRF spectrometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2853261B2 (en) * | 1989-05-16 | 1999-02-03 | 三菱マテリアル株式会社 | Metal analysis method and analyzer |
| CN105548230A (en) * | 2015-12-17 | 2016-05-04 | 合肥工业大学 | An X-ray fluorescence spectroscopy on-line detecting method for heavy metals in industrial ambient air |
| CN106153656A (en) * | 2016-08-31 | 2016-11-23 | 江苏天瑞仪器股份有限公司 | A kind of X fluorescence spectrum method rapid assay methods to heavy metal in soil cadmium element |
-
2017
- 2017-01-06 CN CN201710011831.2A patent/CN106706691A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2853261B2 (en) * | 1989-05-16 | 1999-02-03 | 三菱マテリアル株式会社 | Metal analysis method and analyzer |
| CN105548230A (en) * | 2015-12-17 | 2016-05-04 | 合肥工业大学 | An X-ray fluorescence spectroscopy on-line detecting method for heavy metals in industrial ambient air |
| CN106153656A (en) * | 2016-08-31 | 2016-11-23 | 江苏天瑞仪器股份有限公司 | A kind of X fluorescence spectrum method rapid assay methods to heavy metal in soil cadmium element |
Non-Patent Citations (3)
| Title |
|---|
| 李颖 等: "X-射线荧光光谱法测定锌铝铜合金中的铝、铜、铁、硅、镍、铅和镉", 《中国无机分析化学》 * |
| 石兵: "X 射线荧光光谱法测定生铁中的次量元素", 《四川冶金》 * |
| 骆倩 等: "几种镉快速测定方法在稻谷样品测定中的应用研究", 《粮油食品科技》 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107909192A (en) * | 2017-11-01 | 2018-04-13 | 北京农业质量标准与检测技术研究中心 | The estimating and measuring method and device of heavy metal content in soil |
| CN107909192B (en) * | 2017-11-01 | 2021-03-19 | 北京农业质量标准与检测技术研究中心 | Estimation method and device for heavy metal content in soil |
| CN109839395B (en) * | 2018-07-25 | 2020-05-22 | 中国环境科学研究院 | Soil pollutant analysis method, device, equipment and system |
| CN109839395A (en) * | 2018-07-25 | 2019-06-04 | 中国环境科学研究院 | Soil pollutant analysis method, device, equipment and system |
| CN110873727A (en) * | 2018-09-04 | 2020-03-10 | 河北地质大学 | XRF-based analysis method for in-situ determination of water body metals |
| CN109060858A (en) * | 2018-09-17 | 2018-12-21 | 中国科学院地理科学与资源研究所 | A kind of quantitative evaluation method of heavy metal-polluted soil concentration space forecast of distribution accuracy |
| CN109668916A (en) * | 2018-12-11 | 2019-04-23 | 大连理工大学 | A kind of hydrate sediment CT Triaxial tester |
| CN109668916B (en) * | 2018-12-11 | 2021-02-19 | 大连理工大学 | Hydrate deposit CT triaxial test device |
| CN112649454A (en) * | 2019-10-09 | 2021-04-13 | 清华苏州环境创新研究院 | Method for detecting concentration of heavy metal in liquid |
| CN111458361A (en) * | 2020-01-06 | 2020-07-28 | 中国地质大学（北京） | Portable XRF-based method for measuring content of elements in leech |
| CN111610207A (en) * | 2020-05-29 | 2020-09-01 | 中交 (天津) 生态环保设计研究院有限公司 | Heavy metal contaminated soil horizon division method based on portable spectral analysis |
| CN112129926A (en) * | 2020-10-10 | 2020-12-25 | 山西省农业科学院农业环境与资源研究所 | Method for monitoring cadmium in cadmium-polluted site soil |
| CN113009102A (en) * | 2021-02-26 | 2021-06-22 | 柳州钢铁股份有限公司 | Method for determining composition of scrap and processing equipment for detecting composition sample of scrap |
| CN114289340A (en) * | 2021-12-29 | 2022-04-08 | 北京市生态环境保护科学研究院 | Method for screening data through portable XRF (X-ray fluorescence) in heavy metal contaminated soil |
| CN114289340B (en) * | 2021-12-29 | 2022-07-29 | 北京市生态环境保护科学研究院 | Method for screening data through portable XRF (X-ray fluorescence) in heavy metal contaminated soil |
| US11698354B1 (en) * | 2021-12-29 | 2023-07-11 | Beijing Municipal Research Institute Of Environmental Protection | Portable XRF data screening method for heavy metal contaminated soil |
| CN116297304A (en) * | 2023-03-10 | 2023-06-23 | 广东建研环境监测股份有限公司 | Soil heavy metal detection method and device based on chemical environment |
| CN116297304B (en) * | 2023-03-10 | 2024-01-26 | 广东建研环境监测股份有限公司 | Soil heavy metal detection method and device based on chemical environment |
| CN116539648A (en) * | 2023-05-08 | 2023-08-04 | 广东省环境科学研究院 | XRF detection-based substance toxicity detection method and XRF spectrometer |
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