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中文名稱：海洋沉積物
英文名稱：Marine Sediment訂貨以英文名稱為準。
產(chǎn)品編號：IAEA-458CAS：/
品牌：標準物質(zhì)產(chǎn)地：進口
標準值：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 20g 0.00 0.00 3-4周 加入購物車
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產(chǎn)品詳細介紹
IAEA-458海洋沉積物Marine Sediment
A sample of 34 kg of sediment was delivered to the IAEA’s Marine Environmental Studies Laboratory (IAEA-MESL) in Monaco by the Korean Ocean Research and Development Institute. The freeze-dried material was milled to a powder and then sieved through a set of sieves. The fraction under 125 μm was collected and further homogenized for 14 days in a clean atmosphere at a temperature of 20 (±2)°C and a relative humidity of 50%. After checking for the homogeneity of the sample material, aliquots of about 20 g were packed into pre-cleaned brown borosilicate glass bottles with polyethylene screw caps and then sealed in plastic bags. The sample material was labeled IAEA-458.
Certified values for mass fractions
(based on dry mass)Analyte Unit Certified value Expanded uncertainty Al mg/kg 82.8 x 103 4.2 x 103 As mg/kg 10.0 0.8 Cd mg/kg 0.49 0.03 Co mg/kg 15.6 1.2 Cr mg/kg 91.5 8.6 Cu mg/kg 48.1 3.1 Fe mg/kg 40.7 x 103 2.0 x 103 Hg mg/kg 0.044 0.003 Li mg/kg 71.7 5.2 Mn mg/kg 886 38 Ni mg/kg 40.0 2.8 Pb mg/kg 35.5 0.2 Sn mg/kg 5.58 0.71 Sr mg/kg 124 6 V mg/kg 99.8 9.6 Zn mg/kg 154 7 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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