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IAEA-140-OC

Sea Weed   Out of stock!
Organic   Vegetation

The common brown seaweed, Fucus sp., (IAEA-140/OC) was obtained from the coast of Normandy, France, through a local supplier. The Fucus sample was freeze-dried and then micronized to give a particle size of less than 40 μm. The powder was further homogenized by mixing in a stainless steel rotating drum for 2 weeks. After checking for the homogeneity of the sample material, aliquots of about 35 g were packed into glass bottles with Teflon lined screw caps and sealed with Teflon tape.

Recommended values (based on dry mass)

Pesticides and PCBs

AnalyteUnitValue95% Confidence IntervalN
β HCHng/g4.62.4 - 9.58
pp’ DDEng/g1.20.86 – 1.631
pp’ DDDng/g0.720.61 – 0.9024
pp’ DDTng/g2.21.4 – 3.629
Dieldrinng/g1.70.72 – 2.823
PCB No 28ng/g1.71.3 – 2.517
PCB No 31ng/g1.81.7 – 2.15
PCB No 49ng/g1.61.1 – 1.96
PCB No 52ng/g3.82.6 – 4.924
PCB No 101ng/g2.41.9 – 3.224
PCB No 105ng/g0.490.4 – 0.713
PCB No 118ng/g1.00.97 – 1.1010
PCB No 138ng/g1.71.2 – 2.624
PCB No 149ng/g1.21.1 – 1.66
PCB No 153ng/g1.71.3 – 3.127
PCB No 156ng/g0.170.08 – 0.367
PCB No 180ng/g0.430.38 – 0.5217

Petroleum Hydrocarbons

AnalyteUnitValue95% Confidence IntervalN
Total Aliphaticsng/g2700025000 – 420009
n-C17ng/g890300 – 130019
Pristaneng/g5015 – 6910
n-C18ng/g9945 – 14015
Phytaneng/g5625 – 10013
∑ n Alkanes (C14 – C34)ng/g110005600 - 210018
Phenanthreneng/g7640 – 11028
2 Methyl Phenanthreneng/g1915 – 4010
1 Methyl Phenanthreneng/g119 - 1411
Anthraceneng/g144 – 9311
Chryseneng/g4025 – 4927
Fluorantheneng/g8857 – 11023
Pyreneng/g6746 – 7924
Benzo (k) Fluorantheneng/g1915 – 278
Benz (a) Anthraceneng/g2514 – 3223
Benzo (e) Pyreneng/g2619 – 3310
Benzo (a) Pyreneng/g2016 – 2215
Naphthaleneng/g179 – 4314
Benzo (ghi) Peryleneng/g2017 – 3515
Indeno (123cd) Pyreneng/g3320 – 5310

(Value) Concentration calculated as a median of the accepted laboratory means
(N) Number of accepted laboratory means which are used to calculate the recommended or information values and their respective confidence intervals

Information values (based on dry mass)

Please note that information values are not to be used for any assessment of analytical performance or similar; they are included to provide information about the expected mass fractions/concentration levels

Chlorinated Pesticides

AnalyteUnitValue95% Confidence IntervalN
HCBng/g1.30.35 – 3.330
α HCHng/g1.41.3 – 1.59
ɣ HCH (Lindane)ng/g115.4 – 1652
Heptachlorng/g30.99 – 4.412
Heptachlor Epoxideng/g0.790.32 – 1.48
Aldrinng/g0.760.50 – 4.515
Endrinng/g0.710.43 – 1.69
α Endosulfanng/g0.90.58 – 4.414
α Chlordaneng/g1.40.36 – 2.88
Aroclor 1254ng/g2512 – 4123
Aroclor 1260ng/g121.9 – 1314

PCB Congeners

AnalyteUnitValue95% Confidence IntervalN
PCB No 18ng/g1.51.2 – 1.94
PCB No 44ng/g21.9 – 2.14
PCB No 66ng/g0.890.65 – 1.14
PCB No 70ng/g1.81.1 – 4.04
PCB No 77ng/g0.190.04 – 6.94
PCB No 87ng/g1.61.2 – 2.04
PCB No 99ng/g0.90.75 – 1.44
PCB No 170ng/g0.210.16 – 0.767
PCB No 187ng/g0.380.3 – 1.24

Petroleum Hydrocarbons

AnalyteUnitValue95% Confidence IntervalN
UVF equivalent Chryseneng/g35001200 – 54008
UVF equivalent ROPME oilng/g2900011000 – 390008
Resolved Aliphaticsng/g130006400 – 2400016
Unresolved Aliphaticsng/g2600012000 - 480008
Total Aromaticsng/g5800750 - 160008
Resolved Aromaticsng/g350150 - 5008
Unresolved Aromaticsng/g81003900 – 170004
Fluoreneng/g6.54.6 - 16007
Benzo (b) Fluorantheneng/g3733 - 376
Peryleneng/g52.7 – 9.84
1 Methyl Naphthaleneng/g136.5 – 154
2 Methyl Naphthaleneng/g169 – 234
Dibenz (ah) Anthraceneng/g4.52.6 – 1606
Acenaphtheneng/g3.43.3 – 7.03

(Value) Concentration calculated as a median of the accepted laboratory means
(N) Number of accepted laboratory means which are used to calculate the recommended or information values and their respective confidence intervals

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 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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