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中文名称：Freeze dried biota (clam, Gafrarium trumidum) Organic Animal Product
英文名称：Freeze dried biota (clam, Gafrarium trumidum) Organic Animal Product订货以英文名称为准。
产品编号：IAEA-451CAS：/
品牌：标准物质产地：进口
标准值：见证书分子式：/
规格 市场价(元) 折后价(元) 供货周期 数量 加入购物车 20g 0.00 0.00 3-4周 加入购物车
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产品详细介绍
IAEA-451Freeze dried biota (clam, Gafrarium trumidum) Organic Animal Product
Origin and preparation of the material
60 kg of Tumid Venus clams (Gafrarium tumidum) were collected in Noumea, New Caledonia. The organisms were dissected and the soft tissues were deep-frozen, freeze dried, ground into powder and sieved through a 250 μm stainless steel sieve.
The sieved biota fraction with a particle size of less than 250 μm was homogenized by mixing it in a stainless steel rotating homogenizer for three weeks. Then, aliquots of about 20 g were packaged in amber glass bottles with aluminum screw caps, labeled IAEA-451 and sealed with Teflon tape.
Certified mass fractions values
Chlorinated pesticides
(based on dry mass)Analyte Unit Certified value1
Expanded uncertainty2
EOM mg g-1 42.2 4.4 HCB ng g-1 0.39 0.04 Dieldrin ng g-1 1.88 0.16 α-Chlordane ng g-1 0.56 0.04 γ-Chlordane ng g-1 0.46 0.13 Aroclor 1260 ng g-1 53.2 4.0
PCB congeners and PBDEAnalyte Certified value1
[ng g-1]Expanded uncertainty2
[ng g-1]PCB 28 0.85 0.09 PCB 95 0.58 0.10 PCB 101 1.74 0.14 PCB 105 0.49 0.12 PCB 110 0.88 0.13 PCB 118 1.01 0.08 PCB 128 0.49 0.04 PCB 138 5.30 0.58 PCB 149 3.33 0.42 PCB 153 8.59 0.78 PCB 170 3.05 0.40 PCB 174 1.32 0.07 PCB 177 0.94 0.10 PCB 180 6.56 1.20 PCB183 1.82 0.22 PCB 187 3.97 0.26 PCB 194 1.45 0.09 PCB 206 0.24 0.03 PBDE 100 0.23 0.04 Petroleum hydrocarbons
Analyte Unit Certified value1
Expanded uncertainty2
EOM mg g-1 36.7 6.4 Total aliphatics μg g-1 244 34 n-C17 ng g-1 373 44 Naphthalene ng g-1 14.8 1.2 Phenanthrene ng g-1 15.8 5.6 Chrysene ng g-1 26.9 2.0 Fluoranthene ng g-1 49.3 3.2 Pyrene ng g-1 40.0 4.6 Benzo [b] Fluoranthene ng g-1 35.8 6.2 Benzo [k] Fluoranthene ng g-1 14.7 3.2 Benz [a] Anthracene ng g-1 19.2 1.3 Benzo [a] Pyrene ng g-1 18.2 2.4 Benzo [g,h,i] Perylene ng g-1 19.5 2.4 Dibenz [a,h] Anthracene ng g-1 5.32 1.36 1) Robust mean of the accepted data sets, each set being obtained by a different laboratory and/or a different method of determination
2) Estimated expanded uncertainty with a coverage factor k=2, corresponding to a level of confidence of approximately 95%, as defined in the Evaluation of measurement data – Guide to the expression of uncertainty in measurement JCGM100:2008 [1].Recommended and information values for mass fractions
Chlorinated pesticides, PCBs Congeners, Petroleum hydrocarbons
please consult Reference sheet (attached)
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
The assigned values were established on the basis of statistically valid results submitted by laboratories which had participated in an international interlaboratory comparison organized by the IAEA Environment Laboratories, Monaco, in 2009.
The details concerning all reported results as well as the criteria for qualification as a certified, recommended or information value may be found in the respective report (attached).
