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中文名稱：沉積物
英文名稱：Costal Sediment訂貨以英文名稱為準(zhǔn)。
產(chǎn)品編號：IAEA-456CAS：/
品牌：標(biāo)準(zhǔn)物質(zhì)產(chǎn)地：進口
標(biāo)準(zhǔn)值：見證書分子式：/
規(guī)格 市場價(元) 折后價(元) 供貨周期 數(shù)量 加入購物車 15g 0.00 0.00 3-4周 加入購物車
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產(chǎn)品詳細介紹
IAEA-456沉積物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.
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