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中文名称：Marine Sediment Inorganic Sediment
英文名称：Marine Sediment Inorganic Sediment订货以英文名称为准。
产品编号：IAEA-459CAS：/
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-459Marine Sediment Inorganic Sediment
Origin and preparation of the material
A marine sediment sample was collected in Han River estuary, South Korea. This sediment was freeze-dried, ground and sieved at 125 µm.
The sieved sediment obtained, around 26 kg, with a particle size of less than 125 μm was homogenized by mixing it in a stainless steel rotating homogenizer for three weeks. Then, aliquots of about 50 g were packaged into cleaned amber glass bottles with aluminium screw caps, labelled IAEA-459 and sealed with Teflon tape.
This certified reference material is intended to be used as a quality control material for the assessment of a laboratory’s analytical work, for the development and validation of analytical procedures, and for quality assurance within a laboratory in the determination of chlorinated pesticides, PCBs, polybrominated diphenyl ethers and polycyclic aromatic hydrocarbons in sediment samples with very low concentration levels.
Certified mass fractions values
(based on dry mass)
Polycyclic Aromatic hydrocarbonsAnalyte Unit Certified value1 Expanded uncertainty2 2-Methylnaphthalene μg kg-1 15.5 5.0 1-Methylnaphthalene μg kg-1 9.2 3.6 Acenaphthylene μg kg-1 3.2 1.3 Fluorene μg kg-1 4.7 1.9 Acenaphthene μg kg-1 1.78 0.73 Dibenzothiophene μg kg-1 9.4 1.8 Phenanthrene μg kg-1 33.9 6.0 Anthracene μg kg-1 6.0 1.0 Fluoranthene μg kg-1 37.3 3.0 Pyrene μg kg-1 46.3 8.3 Benz(a)anthracene μg kg-1 19.3 4.3 Chrysene+triphenylene μg kg-1 27.5 8.5 Benzo(b)fluoranthene μg kg-1 44.1 9.3 Benzo(b+j) fluoranthene μg kg-1 59 15 Benzo(k)fluoranthene μg kg-1 19.0 5.3 Benzo(e)pyrene μg kg-1 36 12 Benzo(a)pyrene μg kg-1 22.7 4.3 Indeno[1,2,3-c,d]pyrene μg kg-1 36 11 Benzo(g,h,i)perylene μg kg-1 36 11
PCB congenersAnalyte Unit Certified value1 Expanded uncertainty2 PCB 28 µg kg-1 2.27 0.56 PCB 31 µg kg-1 2.41 0.60 PCB 44 µg kg-1 1.72 0.64 PCB 49 µg kg-1 2.64 0.40 PCB 52 µg kg-1 2.38 0.67 PCB 66 µg kg-1 3.10 0.81 PCB 87 µg kg-1 1.24 0.17 PCB 101 µg kg-1 3.78 0.43 PCB 105 µg kg-1 1.29 0.31 PCB 110 µg kg-1 3.70 0.68 PCB 118 µg kg-1 2.98 0.39 PCB 128 µg kg-1 0.62 0.11 PCB 138 µg kg-1 3.25 0.89 PCB 149 µg kg-1 2.88 0.51 PCB 151 µg kg-1 0.66 0.18 PCB 153 µg kg-1 3.75 0.66 PCB 156 µg kg-1 0.336 0.063 PCB 170 µg kg-1 1.02 0.22 PCB 180 µg kg-1 2.22 0.34 PCB 183 µg kg-1 0.72 0.27 PCB 187 µg kg-1 1.39 0.20 PCB 209 µg kg-1 0.199 0.067 Chlorinated pesticides
Analyte Unit Certified value1 Expanded uncertainty2 pp' DDE µg kg-1 3.60 0.48 pp' DDD µg kg-1 3.00 0.93 pp' DDT µg kg-1 1.32 0.52 op DDE µg kg-1 0.47 0.11 op DDD µg kg-1 0.75 0.27 op DDT µg kg-1 0.35 0.13 PBDE congeners
Analyte Unit Certified value1 Expanded uncertainty2 BDE 47 µg kg-1 0.177 0.060 BDE 99 µg kg-1 0.240 0.067 BDE 153 µg kg-1 0.097 0.022 BDE 183 µg kg-1 0.282 0.065 BDE 209 µg kg-1 10.8 2.9 1) The value is the robust mean of 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 with a coverage factor k=2 2 Expanded uncertainty 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 [1], corresponding to the level of confidence of about 95%.
