IAEA-435 , Tuna homogenate

Organic , Animal Products

  • Unit Size: 30 g
  • Price per Unit: 120 EUR
  • Report: IAEA/AL/163
  • Date of Release: 2005-12-02
  • Reference Sheet: IAEA-435
  • Producing Laboratory: email

A large batch (150 kg wet weight) of tuna (Thunnus thynnus) was collected from the Mediterranean Sea to be used as an intercomparison material. This material was freeze-dried, ground, and sieved through a 250 μm stainless steel sieve. The powder fraction of particle size < 250 μm was further homogenized by mixing in a stainless steel rotating drum for two weeks. Then, aliquots of about 30 g were packaged into glass bottles with aluminum screw caps and sealed with Teflon tape.

Recommended values (based on dry mass)

Pesticides and PCBs

Analyte Unit Concentration Standard deviation N*
HCB ng/g 2.6 1.0 28
op DDD ng/g 2.5 0.52 6
PCB 28 ng/g 1.4 0.55 16
PCB 31 ng/g 1.5 0.66 10
PCB 66 ng/g 5.0 1.2 8
PCB 99 ng/g 16 4.1 6
PCB 105 ng/g 6.7 3.6 13
PCB 128 ng/g 9.5 4.7 11
PCB 149 ng/g 29 7.1 14
PCB 151 ng/g 12 2.7 6
PCB 156 ng/g 3.4 1.3 7
PCB 177 ng/g 7.9 4.2 6
PCB 183 ng/g 11 2.9 8
PCB 187 ng/g 31 10 9
PCB 194 ng/g 3.9 1.1 12
PCB 206 ng/g 2.8 1.4 8
PCB 209 ng/g 2.0 0.84 6

Petroleum Hydrocarbons

Analyte Unit Concentration Standard deviation N*
Phytane ng/g 83 40 9
Naphthalene ng/g 7.8 5.9 14
Phenanthrene ng/g 8.4 4.9 16
1 Methyl Phenanthrene ng/g 4.8 3.6 8
Chrysene ng/g 2.8 2.6 11
Acenaphthene ng/g 3.4 3.5 8

* Number of accepted laboratory results which were used to calculate the recommended values and standard deviations.

Information Values (based on dry mass)

Chlorinated Pesticides and PCBs

Analyte Unit Concentration Standard deviation N*
α HCH ng/g 0.76 0.73 8
β HCH ng/g 1.3 1.4 7
γ HCH (Lindane) ng/g 1.1 0.91 26
pp' DDE ng/g 91 58 53
pp' DDD ng/g 12 7.4 39
pp' DDT ng/g 18 10 40
op DDE ng/g 2.9 2.3 6
op DDT ng/g 7.8 4.8 7
Heptachlor ng/g 1.1 2.1 15
Heptachlor epoxide ng/g 2.8 2.5 14
Aldrin ng/g 1.1 0.64 18
Dieldrin ng/g 3.8 2.1 20
Endrin ng/g 12 12 17
α Endosulfan ng/g 7.7 6.1 12
β Endosulfan ng/g 17 17 11
Endosulfan sulfate ng/g 13 10 8
α Chlordane ng/g 8.0 1.4 8
γ Chlordane ng/g 0.48 0.34 4
Cis-Nonachlor ng/g 13 3.5 3
Trans-Nonachlor ng/g 27 9.0 3
Aroclor 1254 ng/g 360 300 19
Aroclor 1260 ng/g 300 220 21
PCB 18 ng/g 4.3 4.6 10
PCB 44 ng/g 3.0 2.8 11
PCB 49 ng/g 3.1 1.7 7
PCB 52 ng/g 4.4 2.5 27
PCB 70 ng/g 4.6 2.1 3
PCB 87 ng/g 6.9 3.9 8
PCB 95 ng/g 8.3 6.3 5
PCB 101 ng/g 23 10 34
PCB 110 ng/g 15 8.3 10
PCB 118 ng/g 24 9.3 29
PCB 138 ng/g 70 32 33
PCB 153 ng/g 81 37 34
PCB 170 ng/g 11 5.9 16
PCB 174 ng/g 9.1 3.1 4
PCB 180 ng/g 32 13 33
PCB 195 ng/g 2.2 1.3 7
PCB 201 ng/g 4.7 1.6 4

* Number of accepted laboratory results which were used to calculate the recommended values and standard deviations.

Petroleum Hydrocarbons

Analyte Unit Concentration Standard deviation N*
UVF Chrysene μg/g 0.74 0.17 3
UVF ROPME oil μg/g 3.4 0.51 4
Total Aliphatics μg/g 42 32 8
Resolved Aliphatics μg/g 37 32 10
Unresolved Aliphatics μg/g 24 11 4
n - C17 ng/g 160 100 8
Pristane μg/g 26 28 12
n - C18 ng/g 150 140 12
Σ n-Alkanes (C14-C34) μg/g 3.2 2.1 6
Total Aromatics μg/g 12 15 6
Resolved Aromatics μg/g 8.8 12 6
Unresolved Aromatics μg/g 14 15 3
Biphenyl ng/g 6.6 1.4 3
1 Methyl Naphthalene ng/g 17 1.0 4
2 Methyl Naphthalene ng/g 26 2.9 4
2,6 Dimethyl Naphthalene ng/g 24 2.9 4
2 Methyl Phenanthrene ng/g 24 28 7
Anthracene ng/g 7.9 10 9
Fluorene ng/g 1.6 1.3 9
Fluoranthene ng/g 3.9 4.2 12
Pyrene ng/g 11 15 17
Benzo[b]fluoranthene ng/g 1.8 2.1 4
Benz[a]anthracene ng/g 3.4 3.9 10
Benzo[e]pyrene ng/g 23 28 4
Benzo[a]pyrene ng/g 26 42 13
Benzo[g,h,i]perylene ng/g 0.89 0.65 5
Indeno[1,2,3,cd]pyrene ng/g 2.2 2.6 4
Dibenz[a,h]anthracene ng/g 8.7 11 4
Acenaphthylene ng/g 8.0 12 3

* Number of accepted laboratory results which were used to calculate the recommended values and standard deviations.

The values listed above were established on the basis of statistically valid results submitted by laboratories which had participated in an international interlaboratory comparison organized by the IAEA Marine Environment Laboratory, Monaco. The details concerning the criteria for qualification as a recommended or information value can be found in the respective report (attached).

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