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中文名称：Sediment Inorganic Sediment
英文名称：Sediment Inorganic Sediment订货以英文名称为准。
产品编号：IAEA-477CAS：/
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 50g 0.00 0.00 3-4周 加入购物车
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产品详细介绍
IAEA-477Sediment Inorganic Sediment
Two sediment samples were collected in Queensland region, Australia using a Van Veen type sampler. One site was sampled in Townsville Marina and the other in Townsville Ross River. Frozen samples were sent from Brisbane to IAEA laboratories in Monaco. Sediment sample was freeze-dried, micronized at 20 µm and γ-irradiated at doses ranging from 27 to 39.5 kGy. The final powdered composite sediment, about 15 kg, was homogenized by mixing it in a stainless-steel rotating drum for three weeks. Then, aliquots of about 50 grams were packaged into cleaned amber glass bottles with screw caps and
Compound
Unit
Certified value1
U (k=2)2
Naphthalene
µg kg-1
4.5
1.8
2-Methylnaphthalene
µg kg-1
2.4
0.7
1-Methylnaphthalene
µg kg-1
1.4
0.5
Phenanthrene
µg kg-1
4.6
1.3
Anthracene
µg kg-1
1.3
0.5
1-Methylphenanthrene
µg kg-1
1.5
0.6
2-Methylphenanthrene
µg kg-1
2.4
0.9
C1-Phen/Anth
µg kg-1
7.6
2.3
Fluoranthene
µg kg-1
6.6
1.7
Pyrene
µg kg-1
6.2
1.6
Benz[a]anthracene
µg kg-1
2.4
0.6
1 The value is the mean of the means of the accepted sets of data, each set being obtained by different laboratory. The certified values are reported on dry mass basis and are traceable to the SI.
2 Expanded uncertainty evaluated according to ISO Guide 35 [1] with a coverage factor k=2 estimated in accordance with the JCGM 100:2008 Evaluation of measurement data – Guide to the expression of uncertainty in measurement [2], corresponding to the level of confidence of about 95%.
Certified mass fraction values (Cont.)
(based on dry mass)
Compound
Unit
Certified value1
U (k=2)2
Chrysene (+ Triphenylene)
µg kg-1
3.5
0.9
C1-Chrysenes
µg kg-1
4.1
1.3
Benzo[b+j]fluoranthene
µg kg-1
5.0
1.2
Benzo[k]fluoranthene
µg kg-1
2.1
0.6
Benzo[e]pyrene
µg kg-1
3.9
1.3
Benzo[a]pyrene
µg kg-1
2.9
0.7
Indeno[1,2,3-c,d]pyrene
µg kg-1
2.6
0.7
Benzo[g,h,i]perylene
µg kg-1
3.0
0.7
1 The value is the mean of the mean of the accepted sets of data, each set being obtained by different laboratory. The certified values are reported on dry mass basis and are traceable to the SI.
2 Expanded uncertainty evaluated according to ISO Guide 35 [1] with a coverage factor k=2 estimated in accordance with the JCGM 100:2008 Evaluation of measurement data – Guide to the expression of uncertainty in measurement [2], corresponding to the level of confidence of about 95%.
