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55

Extraction of Polycyclic Aromatic Hydrocarbons from Fish

Using QuEChERS Methodology

(Part Number: 60105-211 and 60105-206)

Sample Preparation

Add 5.0g of homogenized fish to a 50mL centrifuge

tube 60105-211

Add 10mL of acetonitrile

Mix by shaking

Mix/vortex for 3 minutes

Centrifuge for 3 minutes at 3400rpm

Clean-up

Add 3mL of supernatant to centrifuge tube 60105-206

Shake for 1 minute

Centrifuge for 1 minute at 3400rpm

Filter supernatant through 0.20µm PTFE membrane

filter (F2500-4)

Analysis

Inject: 15µL on to HPLC

Flow rate: 0.8mL/minute

Mobile phase: 50:50

ACN:water

Gradient: linear for 15 min, total run 40 min

Compound

Wavelength nm

naphthalene, acenaphthene and fluorene

315/260

Phenanthrene

366/260

anthracene, fluoranthene, pyrene, benz(a)anthracene,

430/260

chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene,

benzo(a)pyrene, dibenz(a,h)anthracene,

benzo(g,h,i)perylene and dibenzo(a,l)pyrene

(indeno(1,2,3-cd)pyrene)

505/290

Recommended HPLC Column

Part Number

Hypersil GREEN PAH 5µm, 150 x 4.0mm

31105-154030

Determination of Polycyclic Aromatic Hydrocarbon in Water

Using 60mg 3mL HyperSep Retain PEP Extraction Column

(Part Number: 60107-203)

Sample Preparation

Add 1 x 20mL of 10% nitric acid into 1L of H

2

O

Condition HyperSep Retain PEP Extraction Column

1 x 5mL IPA

1 x 5mL H

2

O

NOTE:

Do not allow the cartridge to dry out

Apply Sample

Load 1L of water sample at 20mL/minute

Wash Column

1 x 5mL (H

2

O 300mL+CH

3

OH 700mL+Na2HPO

4

2.1g+KH

2

PO

4

2g)

Dry column (20 minutes at >10"Hg)

Elute

1 x 4mL (IPA 90mL+acetic acid 10mL+toluene

200mL+petroleum ether 1L)

Concentrate sample

Analysis

Inject onto HPLC

Recommended HPLC Column

Part Number

Hypersil Green PAH 3µm, 150 x 4mm

31103-154030

Environmental

Applications