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PCB in Oil Samples

Method:
Matrix
Application-No.:
SPE
oil
301380

Substances: PCB
Column: CHROMABOND® SiOH-H2SO4/SA, 3 ml, 500/500 mg,
CHROMABOND® SiOH, 3 ml, 500 mg
Phase: CHROMABOND SA/SiOH
MN catalog number: 730125
Sample pretreatment: Extract oil-contaminated solids with n-hexane. Homogenise other oil samples and dissolve 1.5 to 2.0 g in 50 ml n-hexane. Water which may cause turbidities can be removed with sodium sulphate.
Conditions: Determination with reference to German Standard DIN 51 527

Column conditioning:
Let 1 ml n-hexane flow through the CHROMABOND® SiOH-H2SO4/SA column.

Sample application:
Aspirate or force 500 μl sample through the CHROMABOND® SiOH-H2SO4/SA column. This phase offers better removal of interfering substances due to sulphonisation. Place CHROMABOND® SiOH-H2SO4/SA column on top of CHROMABOND® SiOH column with the aid of an adaptor (MN-cat. no. 730100) and after at least 30 seconds flush sample into the SiOH column with 2 x 1 ml n-hexane.

Elution:
Elute SiOH column with 3 x 0.5 ml n-hexane; adjust to a suitable concentration for subsequent GC analysis by evaporation of n-hexane in a stream of nitrogen or by dilution with n-hexane.

Author(-s): Macherey-Nagel
Source: LC Department

Keywords: PCB; oil


Recovery rates: Compound  recovery [%]
PCB 28           99
PCB 52           95
PCB 101         99
PCB 138         94
PCB 153         99
PCB 180         96
PCB 209        101



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MACHEREY-NAGEL does not warrant the correctness of the applications.


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