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GB/T 27860-2011: Chemicals -- Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
Status: Valid
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| GB/T 27860-2011 | English | 299 |
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Chemicals -- Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
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GB/T 27860-2011
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Basic data | Standard ID | GB/T 27860-2011 (GB/T27860-2011) | | Description (Translated English) | Chemicals -- Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A80 | | Classification of International Standard | 13.300; 13.020.40 | | Word Count Estimation | 13,125 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-08-01 | | Quoted Standard | GB/T 21851; GB/T 21852 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard provides high-performance liquid chromatography (HPLC) estimates of chemicals in soil and sludge adsorption coefficient of terms and definitions, test substance information, methodologies overview, test preparation, testing, quality control, data and reports. This standard is applicable to chemically stable during the test substances, especially difficult to use other methods suitable for the substance being tested, such as: volatile substances can not be analyzed due to poor water solubility test substance concentration, has a strong adsorption affinity Labware a chemical substance that is also suitable for containing not completely separated system eluting with a mixture (test mixture shall be given on 1gKoc lower). This standard applies to the adsorption coefficient (1gKoc) range of 1. 5 to 5. 0. This standard does not apply to high-performance liquid chromatography stationary phase or with the mobile phase reactive substances with certain minerals play a role in a particular way the material (eg, based on the formation of complexes with clay minerals) and surfactant agents, inorganic, the strong acid and bases. | GB/T 27860-2011: Chemicals -- Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
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Chemicals. Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
ICS 13.300; 13.020.40
A80
National Standards of People's Republic of China
Chemicals and high performance liquid chromatography to estimate soil
Adsorption coefficient sludge
Chemicals-Estimationoftheadsorptioncoefficient (Koc) onsoilandon
sewagesludgeusinghighperformanceliquidchromatography (HPLC)
Issued on. 2011-12-30
2012-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 rules.
The Standards and Organisation for Economic Co-operation and Development (OECD) Guidelines for the Testing of Chemicals NO.121 (2001 Nian) "HPLC estimate
Soil and sludge adsorption coefficient "(in English) count the same technical content.
This standard configuration and do the following editorial changes.
--- The example of chemical substances by the applicable body moved in Appendix B;
--- A unit of measurement instead of legal units of measurement;
--- Consistent with the existing standard series, the standard name to adsorption of soil and sludge "chemicals HPLC estimate
coefficient".
This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points.
This standard was drafted. Chemical Registration Center of the Ministry of Environmental Protection, Shenyang Research Institute of Chemical Safety Evaluation Center, Shanghai testing center.
The main drafters of this standard. Zhou Hong, Liu Chun new, Zhang Xin, Song Mei Hou, Li Ying, Liu Min, Dengyun Yun, Zhou Linjun.
Chemicals and high performance liquid chromatography to estimate soil
Adsorption coefficient sludge
1 Scope
This standard specifies a high performance liquid chromatography (HPLC) to estimate chemical terms and definitions in soil and sludge adsorption coefficient test
Material information, an overview of methods, test preparation, testing, quality control, data and reports.
This standard applies to chemically stable during the test substance, especially for difficult to test substances other ways, such as. volatility
Substance, since the poorly water-soluble and can not be analyzed to detect the concentration of the substance, of the assay vessel having a strong affinity for chemicals, also apply
Containing mixture can not be completely separated from the elution system band (lgKoc test mixture should be given in its upper and lower limits).
The adsorption coefficient (lgKoc) This standard applies to a range of 1.5 to 5.0.
This standard does not apply to materials with high performance liquid chromatography stationary phase or mobile phase reaction occurs, with some inorganic substances in a special way
Substances play a role (eg, form complexes with clay minerals basis) and a surfactant, inorganic, strong acid and alkali.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 21851 detect chemical adsorption batch equilibrium method/desorption test
GB/T 21852 Chemical Distribution coefficient (n-octanol - water) high performance liquid chromatography test
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Distribution coefficient Kd partitioncoefficient
Under equilibrium ratio between the concentrations of chemicals in the sorbent (soil or sludge) with the aqueous phase. Two-phase concentrations are mass concentration table
When shown, Kd dimensionless; if the water phase concentration in mass/volume representation of, the Kd of milliliters per gram (mL/g). Kd values \u200b\u200bwith the adsorption
Agents varies nature and concentration of the relevant adsorbent. See equation (1).
Kd = C C soil water
Or C sludge
C water
(1)
Where.
KD --- partition coefficient, dimensionless or milliliters per gram (mL/g);
When C --- soil balance soil test substance concentration, in micrograms per gram (μg/g);
When C --- balance sludge sludge test substance concentration, in micrograms per gram (μg/g);
When C --- water balance test substance concentration in the aqueous phase, in micrograms per gram (μg/g) or micrograms per milliliter (μg/mL).
3.2
Freundlich adsorption coefficient Kf Freundlichadsorptioncoefficient
In the chemical equilibrium aqueous phase concentrations of 1μg/mL, the chemical adsorbent (soil or sludge) (x/m) the concentration.
Kf values \u200b\u200bwith properties of the adsorbent differ.
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