CN110361465A - The component method of separating and assaying of total petroleum hydrocarbon in soil - Google Patents
The component method of separating and assaying of total petroleum hydrocarbon in soil Download PDFInfo
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- CN110361465A CN110361465A CN201910566015.7A CN201910566015A CN110361465A CN 110361465 A CN110361465 A CN 110361465A CN 201910566015 A CN201910566015 A CN 201910566015A CN 110361465 A CN110361465 A CN 110361465A
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- hydrocarbon
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- 239000003209 petroleum derivative Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 title claims abstract description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims abstract description 25
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims abstract description 25
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 24
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims abstract description 14
- 238000000605 extraction Methods 0.000 claims abstract description 14
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 13
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 13
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000000899 pressurised-fluid extraction Methods 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 9
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- 238000010828 elution Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000004587 chromatography analysis Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 239000003480 eluent Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- FKHIFSZMMVMEQY-UHFFFAOYSA-N talc Chemical compound [Mg+2].[O-][Si]([O-])=O FKHIFSZMMVMEQY-UHFFFAOYSA-N 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 125000003118 aryl group Chemical group 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of component method of separating and assaying of total petroleum hydrocarbon in soil, pedotheque is extracted into organic solvent with accelerated solvent extraction mode by this method, and extract liquor is concentrated after the completion of extraction；Aluminium oxide is inserted in chromatographic column, the extract liquor of concentration is flowed through into chromatographic column, and aliphatic hydrocarbon in chromatographic column and aromatic hydrocarbon are eluted out and are collected with n-hexane and methylene chloride respectively；Enriching fat hydrocarbon and aromatic hydrocarbon collection liquid, the aliphatic hydrocarbon and aromatic hydrocarbon collection liquid of concentration respectively enter gas chromatographicanalyzer analysis, obtain the concentration of aliphatic hydrocarbon and aromatic hydrocarbon in total petroleum hydrocarbon.This method is easy to operate, realizes the separation determination of aliphatic hydrocarbon and aromatic component in total petroleum hydrocarbon, is conducive to avoid environmental pollution, it is ensured that human health to the judgement of the total petroleum hydrocarbon extent of injury in soil.
Description
Technical field
The present invention relates to a kind of component separation determination sides of total petroleum hydrocarbon in analysis and testing technology field more particularly to soil
Method.
Background technique
Petroleum hydrocarbon is one of the organic pollutant being widely present in current environment, including gasoline, kerosene, diesel oil, lubrication
Oil, paraffin and pitch etc., are a variety of hydro carbons (normal alkane, branched paraffin, cycloalkane, aromatic hydrocarbons) and other organic matters on a small quantity,
Such as sulfide, nitride, naphthenic mixture.With the development of economy, demand of the mankind to the energy constantly expands,
Petroleum has become one of most important energy of the mankind.During the exploitation of petroleum, processing and utilization, more and more petroleum
Soil environment and ocean may be entered so as to cause the pollution of soil environment and ocean water quality and destroy the excessive total petroleum of
Hydrocarbon, which once enters soil, would become hard to be excluded, and will cause serious harm to society, economy and the mankind.And excessive oil hydrocarbon
Into ocean, it can assemble in marine organism, as food chain enters human body, endanger human health.
It is mainly at present to measure total stone according to 2007 gas chromatography of EPA 8015C to the detection of total petroleum hydrocarbon in soil
The total amount of petroleum hydrocarbon, but this method can not judge the constituent of total petroleum hydrocarbon, and aliphatic hydrocarbon and fragrance in the composition of total petroleum hydrocarbon
The toxicity and the extent of injury of hydrocarbon have apparent difference, therefore for the separation determination of aliphatic hydrocarbon in total petroleum hydrocarbon and aromatic component
It is of great significance.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of component method of separating and assaying of total petroleum hydrocarbon in soil, originally
Method is easy to operate, realizes the separation determination of aliphatic hydrocarbon and aromatic component in total petroleum hydrocarbon, is conducive to petroleum total in soil
The judgement of the hydrocarbon extent of injury, avoids environmental pollution, it is ensured that human health.
In order to solve the above technical problems, the component method of separating and assaying of total petroleum hydrocarbon includes following step in soil of the present invention
It is rapid:
Step 1: pedotheque is extracted into organic solvent with accelerated solvent extraction mode, extract liquor is concentrated after the completion of extraction
To 1ml；
Step 2: inserting aluminium oxide in chromatographic column, extract liquor is flowed through into chromatographic column, uses n-hexane and methylene chloride by layer respectively
Aliphatic hydrocarbon and aromatic hydrocarbon are eluted out and collect in analysis column；
Step 3: enriching fat hydrocarbon and aromatic hydrocarbon collection liquid are to 1ml, the aliphatic hydrocarbon and aromatic hydrocarbon collection liquid of concentration respectively enter gas
The analysis of analysis of hplc instrument, obtains the concentration of aliphatic hydrocarbon and aromatic hydrocarbon in total petroleum hydrocarbon.
Further, in step 1, a piece of cellulose filter membrane is added in extraction bottom of pond portion, successively add 2g florisil silica,
Then cellulose filter membrane is placed in abstraction pool top by the pedotheque and 2g quartz sand that 20g and diatomite mix well, open and add
Extract liquor is concentrated into 1ml by nitrogen evaporator using after anhydrous sodium sulfate filtering means dehydration after the completion by the extraction of quick-dissolving agent abstraction instrument.
Further, in step 2,20ml n-hexane is added in 1ml concentrated extract, is concentrated into 1ml, mistake through nitrogen evaporator
Alumina column, alumina column are that 10g aluminium oxide is added in chromatographic column, and tapping dress column, chromatographic column upper layer adds 1cm anhydrous slufuric acid
Sodium；With 50 ml normal hexane prewashing chromatographic columns, eluate is discarded, 1ml concentration extraction is shifted before anhydrous sodium sulfate is exposed to air
Liquid separately completes the transfer of concentrated extract to chromatographic column upper end with the rinse of 1ml normal hexane；Keep chromatographic column upper layer anhydrous sodium sulfate
In solvent, with total amount 15ml normal hexane elution chromatography column, eluate is collected with 250ml flask, marks it for aliphatic hydrocarbon；Adjustment
Flow velocity is 2mL/min, collects eluate with 100ml dichloromethane eluent chromatographic column, and with 250ml flask, and it is fragrant for marking it
Hydrocarbon.
Further, in step 3, the analysis condition of gas chromatographicanalyzer be using DB-5 chromatographic column, 1.5 mL/min's
Constant current mode, injector temperature 300oC, Splitless injecting samples, column temperature are 50oC in the initial stage and are kept for 2 minutes, the first stage
200 oC are warming up to the rate of 30 oC/minute, second stage is warming up to 325 oC with the rate of 15oC/minute and protects
It holds 5 minutes.
Since the component method of separating and assaying of total petroleum hydrocarbon in soil of the present invention uses above-mentioned technical proposal, i.e. this method will be native
Earth sample is extracted into organic solvent with accelerated solvent extraction mode, and extract liquor is concentrated after the completion of extraction；It is inserted in chromatographic column
The extract liquor of concentration is flowed through chromatographic column by aluminium oxide, uses n-hexane and methylene chloride by aliphatic hydrocarbon in chromatographic column and fragrance respectively
Hydrocarbon is eluted out and collects；Enriching fat hydrocarbon and aromatic hydrocarbon collection liquid, the aliphatic hydrocarbon and aromatic hydrocarbon collection liquid of concentration respectively enter
Gas chromatographicanalyzer analysis, obtains the concentration of aliphatic hydrocarbon and aromatic hydrocarbon in total petroleum hydrocarbon.This method is easy to operate, realizes total stone
The separation determination of aliphatic hydrocarbon and aromatic component in petroleum hydrocarbon is conducive to avoid the judgement of the total petroleum hydrocarbon extent of injury in soil
Environmental pollution, it is ensured that human health.
Specific embodiment
Embodiment 1: pedotheque is extracted into organic solvent using accelerated solvent extraction mode by this method, after the completion of extraction
Extract liquor is concentrated to 1ml；Insert aluminium oxide in chromatographic column, concentrated extract flowed through into chromatographic column, respectively with n-hexane and
Aliphatic hydrocarbon in chromatographic column and aromatic hydrocarbon are eluted out and are collected by methylene chloride；Enriching fat hydrocarbon and aromatic hydrocarbon collection liquid are to 1ml
And it respectively enters gas chromatographicanalyzer to be analyzed, obtains the concentration of aliphatic hydrocarbon and aromatic hydrocarbon in total petroleum hydrocarbon.
On the basis of embodiment 1, sample preparation is that a piece of cellulose filter membrane is added in extraction bottom of pond portion, successively adds 2g
The pedotheque and 2g quartz sand that florisil silica, 20g and diatomite mix well, are then placed in extraction for cellulose filter membrane
Accelerated solvent extraction extraction is opened on pond top, after the completion blows extract liquor by nitrogen using after anhydrous sodium sulfate filtering means dehydration
Instrument is concentrated into 1ml.
On the basis of embodiment 1, aliphatic hydrocarbon and being separated into for aromatic hydrocarbon add in 1ml concentrated extract in total petroleum hydrocarbon
Entering 20ml n-hexane, is concentrated into 1ml, peroxidating aluminium column through nitrogen evaporator, alumina column is that 10g aluminium oxide is added in chromatographic column,
Tapping dress column, chromatographic column upper layer adds 1cm anhydrous sodium sulfate；With 50 ml normal hexane prewashing chromatographic columns, eluate is discarded, anhydrous
Transfer 1ml concentrated extract separately completes concentration extraction with the rinse of 1ml normal hexane to chromatographic column upper end before sodium sulphate is exposed to air
The transfer of liquid；It keeps chromatographic column upper layer anhydrous sodium sulfate in solvent, with total amount 15ml normal hexane elution chromatography column, uses 250ml
Flask collects eluate, marks it for aliphatic hydrocarbon；Adjustment flow velocity is 2mL/min, with 100ml dichloromethane eluent chromatographic column, and
Eluate is collected with 250ml flask, marks it for aromatic hydrocarbon.
The analysis condition of gas chromatographicanalyzer is using DB-5 chromatographic column, the constant current mould of 1.5 mL/min in this method
Formula, injector temperature 300oC, Splitless injecting samples, column temperature are 50oC in the initial stage and are kept for 2 minutes that the first stage is with 30 o
The rate of C/minute is warming up to 200 oC, and second stage is warming up to 325 oC with the rate of 15oC/minute and is kept for 5 points
Clock.
The principle of this method is that adsorption capacity according to substance on stationary phase (aluminium oxide) is different and separate each component；One
As in the case of the biggish substance of polarity be easily fixed phase (aluminium oxide) absorption, the weaker substance of polarity is not easy to be fixed phase (oxidation
Aluminium) absorption.When using solvent elution, occur a series of absorption → desorption → process adsorbed → desorbed again again, adsorption capacity compared with
The mobile distance of strong component is small, afterwards column out；The adsorption capacity distance mobile compared with weak component is big, first column out.The polarity of aliphatic hydrocarbon
It is weaker, eluted first by solvent, and the polarity of aromatic hydrocarbon is stronger, after be eluted, to achieve the purpose that component separates.After separation
Group be distributed into gas chromatographicanalyzer analysis, obtain the concentration of component.
This method can still use the gas chromatographicanalyzer (fid detector) conventionally used for analyzing total petroleum hydrocarbon to carry out
Analysis saves cost without increasing equipment investment.Aliphatic hydrocarbon and fragrance are completely segregated into through total petroleum hydrocarbon in this method soil
Hydrocarbon and respectively examinations are conducive to the specific aim selection of the judgement and subsequent improvement to soil pollutant source.
Claims (4)
1. the component method of separating and assaying of total petroleum hydrocarbon in a kind of soil, it is characterised in that this method includes the following steps:
Step 1: pedotheque is extracted into organic solvent with accelerated solvent extraction mode, extract liquor is concentrated after the completion of extraction
To 1ml；
Step 2: inserting aluminium oxide in chromatographic column, extract liquor is flowed through into chromatographic column, uses n-hexane and methylene chloride by layer respectively
Aliphatic hydrocarbon and aromatic hydrocarbon are eluted out and collect in analysis column；
Step 3: enriching fat hydrocarbon and aromatic hydrocarbon collection liquid are to 1ml, the aliphatic hydrocarbon and aromatic hydrocarbon collection liquid of concentration respectively enter gas
The analysis of analysis of hplc instrument, obtains the concentration of aliphatic hydrocarbon and aromatic hydrocarbon in total petroleum hydrocarbon.
2. the component method of separating and assaying of total petroleum hydrocarbon in soil according to claim 1, it is characterised in that: step 1
In, a piece of cellulose filter membrane is added in extraction bottom of pond portion, successively adds what 2g florisil silica, 20g and diatomite mixed well
Then cellulose filter membrane is placed in abstraction pool top by pedotheque and 2g quartz sand, open accelerated solvent extraction extraction, complete
Extract liquor is concentrated into 1ml by nitrogen evaporator using after anhydrous sodium sulfate filtering means dehydration afterwards.
3. the component method of separating and assaying of total petroleum hydrocarbon in soil according to claim 1, it is characterised in that: step 2
In, 20ml n-hexane is added in 1ml concentrated extract, is concentrated into 1ml through nitrogen evaporator, peroxidating aluminium column, alumina column be
10g aluminium oxide is added in chromatographic column, tapping dress column, chromatographic column upper layer adds 1cm anhydrous sodium sulfate；With 50 ml normal hexane prewashing
Chromatographic column discards eluate, and 1ml concentrated extract is shifted before anhydrous sodium sulfate is exposed to air to chromatographic column upper end, another use
The transfer of 1ml normal hexane rinse completion concentrated extract；Keep chromatographic column upper layer anhydrous sodium sulfate in solvent, with total amount 15ml
Normal hexane elution chromatography column collects eluate with 250ml flask, marks it for aliphatic hydrocarbon；Adjustment flow velocity is 2mL/min, is used
100ml dichloromethane eluent chromatographic column, and eluate is collected with 250ml flask, mark it for aromatic hydrocarbon.
4. the component method of separating and assaying of total petroleum hydrocarbon in soil according to claim 1, it is characterised in that: step 3
In, the analysis condition of gas chromatographicanalyzer is using DB-5 chromatographic column, the constant current mode of 1.5 mL/min, injector temperature
300oC, Splitless injecting samples, column temperature are 50oC in the initial stage and are kept for 2 minutes that the first stage is with the rate of 30 oC/minute
200 oC are warming up to, second stage is warming up to 325 oC with the rate of 15oC/minute and is kept for 5 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910566015.7A CN110361465A (en) | 2019-06-27 | 2019-06-27 | The component method of separating and assaying of total petroleum hydrocarbon in soil |
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| CN201910566015.7A CN110361465A (en) | 2019-06-27 | 2019-06-27 | The component method of separating and assaying of total petroleum hydrocarbon in soil |
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Cited By (5)
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| CN111521715A (en) * | 2020-06-10 | 2020-08-11 | 浙江省地质矿产研究所 | Method for detecting total petroleum hydrocarbon C in soil and sediment10～C40Method (2) |
| CN114216981A (en) * | 2021-12-15 | 2022-03-22 | 广西壮族自治区海洋环境监测中心站 | Method for detecting petroleum hydrocarbon in marine sediment |
| CN114487253A (en) * | 2022-02-14 | 2022-05-13 | 中国石油化工股份有限公司 | Method for determining petroleum hydrocarbon composition in petrochemical pollution site environment sample |
| CN114486415A (en) * | 2021-12-23 | 2022-05-13 | 广东贝源检测技术股份有限公司 | Method for extracting petroleum hydrocarbon in soil |
| CN115078577A (en) * | 2022-06-14 | 2022-09-20 | 国网河北省电力有限公司电力科学研究院 | Method for detecting petroleum hydrocarbon in soil |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521715A (en) * | 2020-06-10 | 2020-08-11 | 浙江省地质矿产研究所 | Method for detecting total petroleum hydrocarbon C in soil and sediment10～C40Method (2) |
| CN111521715B (en) * | 2020-06-10 | 2022-07-19 | 浙江省地质矿产研究所 | Method for detecting total petroleum hydrocarbon C in soil and sediment10～C40Method (2) |
| CN114216981A (en) * | 2021-12-15 | 2022-03-22 | 广西壮族自治区海洋环境监测中心站 | Method for detecting petroleum hydrocarbon in marine sediment |
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| CN114486415B (en) * | 2021-12-23 | 2024-06-07 | 广东贝源检测技术股份有限公司 | Method for extracting petroleum hydrocarbon from soil |
| CN114487253A (en) * | 2022-02-14 | 2022-05-13 | 中国石油化工股份有限公司 | Method for determining petroleum hydrocarbon composition in petrochemical pollution site environment sample |
| CN115078577A (en) * | 2022-06-14 | 2022-09-20 | 国网河北省电力有限公司电力科学研究院 | Method for detecting petroleum hydrocarbon in soil |
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