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中文名称：沉积物
英文名称：Costal Sediment订货以英文名称为准。
产品编号：IAEA-456CAS：/
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 15g 0.00 0.00 3-4周 加入购物车
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产品详细介绍
IAEA-456沉积物Costal Sediment
The sediment material was collected in New Caledonia, immediately frozen and then freeze dried. The sediment was first sieved at 500 µm, ground, and then sieved at 125 µm followed by mechanical homogenization of the collected fraction. The sieving cut-off value (125 µm) was selected to ensure that the physical properties of the material are sufficiently uniform, whilst retaining sufficient material to make an adequate number of units. Aliquots of about 15 g were packed into amber glass bottles with polyethylene caps and sealed in plastic bags. The sample material was labeled IAEA-456.
Certified values for mass fractions
(based on dry mass)Analyte Unit Certified value Expanded uncertainty Al g/kg 55.4 4.0 As mg/kg 6.14 0.52 Cd mg/kg 0.198 0.02 Co mg/kg 47.2 2.5 Cr mg/kg 589 42 Cu mg/kg 44.6 2.4 Fe g/kg 49.5 3.2 Hg mg/kg 0.077 0.005 CH3Hg µg/kg as Hg 0.125 0.019 Mn mg/kg 825 52 Ni mg/kg 760 56 Pb mg/kg 33.4 2.1 V mg/kg 223 16 Zn mg/kg 203 9 The assigned property values were established on the basis of results reported by participating laboratories to the IAEA Environment Laboratories in Monaco. The details concerning all reported results as well as the criteria for assignment of property values can be found in the respective report.
