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| Hydrocarbons in water acc. to ISO DIS 9377-4 / DIN H-53 |
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Method:
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Matrix
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Application-No.:
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SPE
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water
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302090
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| Substances: |
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hydrocarbons |
| Column: |
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CHROMABOND Na2SO4/Florisil, 2000/2000 mg, 6 ml glass column,
CHROMABOND tubing adaptor for 1, 3, 6 ml glass columns |
| Phase: |
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CHROMABOND Na2SO4/Florisil |
| MN catalog numbers: |
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730249G
730387 |
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| Sample pretreatment: |
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Internal standard solution: Solve 20 mg n-tetracontane (C40H82) in cyclohexane, add 20 ml n-nonane (C9H20) and fill up to 1 litre with cyclohexane. To prepare the extraction solution dilute the standard solution with cyclohexane 1:10.
Sample pretreatment: Adjust 900 ml water (10°C) to pH 2 with HCl and add 80g MgSO4. Add 50 ml of the extraction solution, close the bottle, and stir the suspension intensively for 30 min. Add water and separate the organic from the aqueous phase.
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| Conditions: |
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Column conditioning: 5 ml cyclohexane
Sample application: Slowly force or aspirate the organic solution through the column.
Elution: Wash with 10 ml cyclohexane. Evaporate the combined organic solutions carefully to 1 ml or less. If necessary, fill up to 1 ml exactly.
(Evaporation to 1 ml can be unnecessary, if the hydrocarbon content is high.)
Recovery rates: Must be > 80 % for n-tetracontane. |
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| Subsequent analysis: |
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Further analysis: According to our GC application 210600 on OPTIMA 1, 25 m, ID 0.32 mm, 0.25 μm |
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| Author(-s): |
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SPE department |
| Source: |
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MACHEREY-NAGEL |
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| Keywords: |
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hydrocarbons |
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| www.mn-net.com |
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Concerning questions to literature applications please contact the cited author/s. Chemicals mentioned in applications are not manufactured or sold by MACHEREY-NAGEL. Applications mentioned in MACHEREY-NAGEL literature or databases are provided for informational purposes only. MACHEREY-NAGEL does not warrant that all applications have been tested in MACHEREY-NAGEL laboratories using MACHEREY-NAGEL products.
MACHEREY-NAGEL does not warrant the correctness of the applications. |
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