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  • BSI
    20/30415503 DC BS ISO 23646. Soil quality. Determination of organochlorine pesticides by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)
    Edition: 2020
    $44.66
    / user per year

Description of 20/30415503 DC 2020

This International Standard specifies a method for quantitative determination of organochlorine pesticides and semi-volatile chlorobenzenes in soil and sediment, using GC-MS and GC-ECD (see Table 2).

Table 2
Target analytes of this International Standard
Target analyte CAS-RN Formula
Aldrin 309-00-2 C12H8Cl6
Dieldrin 60-57-1 C12H8Cl6O
Endrin 72-20-8 C12H8Cl6O
Isodrin 465-73-6 C12H8Cl6
Telodrin 297-78-9 C9H4Cl8O
Heptachlor 76-44-8 C10H5Cl7
Heptachloro epoxide (exo-, cis-isomer) 1024-57-3 C10H5Cl7O
Heptachloro epoxide (endo-, trans-isomer) 28044-83-9 C10H5Cl7O
α-Endosulfan 959-98-8 C9H6Cl6O3S
β-Endosulfan 33213-65-9 C9H6Cl6O3S
Endosulfan sulfate 1031-07-8 C9H6Cl6O3S
p,p'-DDE 1,1-bis-(4-chlorophenyl)-2,2-dichloroethen 72-55-9 C14H8Cl4
o,p'-DDD 1-(2-Chlorophenyl)-1-(4-chlorophenyl)-2,2-dichloroethan 53-19-0 C14H10Cl4
o,p'-DDT 1,1,1-Trichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethan 789-02-6 C14H9Cl4
p,p'-DDD 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethan 72-54-8 C14H10Cl4
o,p'-DDE 2-(2-Chlorophenyl)-2-(4-chlorophenyl)-1,1-dichloroethen 3424-82-6 C14H8Cl4
p,p'-DDT 1,1,1-Trichlor-2,2-bis-(4-chlorophenyl)ethan 50-29-3 C14H9Cl4
Methoxychlor 72-43-5 C16H15Cl3O2
HCB Hexachlorobenzene 118-74-1 C6Cl6
α-HCH α-Hexachlorocyclohexane 319-84-6 C6H6Cl6
β-HCH β-Hexachlorocyclohexane 319-85-7 C6H6Cl6
γ-HCH γ-Hexachlorocyclohexane 58-89-9 C6H6Cl6
δ-HCH δ-Hexachlorocyclohexane 319-86-8 C6H6Cl6
Hexachloro-1,3-butadiene 87-68-3 C4Cl6
α-Chlordane 5103-71-9 C10H6Cl8
γ-Chlordane 5103-74-2 C10H6Cl8
1,2,4-Trichlorobenzene 120-82-1 C6H3Cl3
1,2,3-Trichlorobenzene 87-61-6 C6H3Cl3
1,3,5-Trichlorobenzene 108-70-3 C6H3Cl3
1,2,3,4-Tetrachlorobenzene 634-66-2 C6H2Cl4
1,2,3,5-Tetrachlorobenzene 634-90-2 C6H2Cl4
1,2,4,5-Tetrachlorobenzene 95-94-3 C6H2Cl4
Pentachlorobenzene 608-93-5 C6HCl5

The limit of detection and the limit of application depends on the determinants, the sample intake, the equipment used, the quality of chemicals used for the extraction of the sample and the clean-up of the extract.

Under the conditions specified in this document, lower limits of application from 1 μg/kg (expressed as dry matter) for soils to 10 μg/kg (expressed as dry matter) for sediments can be achieved. The necessity to achieve these lower limits of application depends on the analyses order and the current limit values.

Soils and sediments may differ in properties as well as in the expected contamination levels of OCP and the presence of interfering substances. These differences make it impossible to describe one general procedure. Based on the properties of the samples, this document contains decision tables regarding drying-, extraction- and clean-up procedures to be used. This method is “performance based”. It is permitted to modify the method if all performance criteria given in this method are met.

The method may be applied to the analysis of other chlorinated compounds not specified in the scope, provided suitability is proven by proper in-house validation experiments.



Standard Number20/30415503 DC
TitleBS ISO 23646. Soil quality. Determination of organochlorine pesticides by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)
StatusDefinitive
Publication Date2020-08-11
Identical National Standard OfISO/DIS 23646
DescriptorsChemical analysis and testing, Chromatography, Aromatic hydrocarbons, Naphthalene, Soils, Gas chromatography, Quality, Halogenated hydrocarbons, Determination of content, Soil testing, Desorption
ICS13.080.10 Chemical characteristics of soils
CommitteeEH/4
PublisherBSI
Pages39

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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