-
-
- 您现在的位置：首页 >> 产品中心 >> 标准物质 >> IAEA标准物质IAEA标准物质
-
-
中文名称：海洋沉积物成分分析标准物质
英文名称：Marine Sediment订货以英文名称为准。
产品编号：IAEA-433CAS：/
品牌：IAEA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 10g 0.00 0.00 3-4周 加入购物车
-
产品详细介绍
A large quantity of marine sediment was collected in 2002 from the Algerian coast of the Mediterranean Sea for use as an intercomparison material. It was deep-frozen, freeze dried, then ground and sieved. The particle size fraction <250 μm was homogenized and bottled in clean plastic bottles. After confirming general homogeneity via a pre-test (results not reported here), the samples were rebottled by packing aliquots of approximately 20 g into cleaned, brown borosilicate glass bottles with Teflon lined screw caps and sealed in plastic bags. Approximately 500 bottles were produced.
Analyte Value Unit 95% C.I. N R/I/C Ag 0.133 mg/kg 0.127 - 0.139 9 R Al 78.2 g/kg 76.8 - 79.6 39 R As 18.9 mg/kg 18.4 -19.4 57 R Ba 268 mg/kg 241 - 295 8 R Br 67 mg/kg 55 - 79 9 R Cd 0.153 mg/kg 0.145 - 0.161 67 R Ce 64.5 mg/kg 61.9 - 67.1 7 I Co 12.9 mg/kg 12.6 - 13.2 65 R Cr 136 mg/kg 134 - 138 79 R Cs 6.40 mg/kg 6.03 - 6.77 8 R Cu 30.8 mg/kg 30.2 - 31.4 89 R Eu 1.18 mg/kg 1.11 - 1.25 6 I Fe 40.8 g/kg 40.3 - 41.3 72 R Hf 3.66 mg/kg 3.44 - 3.88 5 I Hg 0.168 mg/kg 0.164 - 0.172 62 R K 16.6 g/kg 13.7 - 19.6 7 R La 33.7 mg/kg 31.4 - 36.0 8 R Li 67.0 mg/kg 65.4 - 68.6 25 R Lu 0.361 mg/kg 0.299 - 0.423 4 I MeHg 0.17 mg/kg 0.12 - 0.23 9 R Mg 11.5 g/kg 11.1 - 12.0 19 R Mn 316 mg/kg 312 - 320 81 R Na 13.5 g/kg 12.0 - 15.1 6 I Nd 29.2 mg/kg 26.5 - 31.9 5 I Ni 39.4 mg/kg 38.7 - 40.1 72 R Pb 26.0 mg/kg 25.4 - 26.6 84 R Ru 99.9 mg/kg 88.1 - 112 8 R Sb 1.96 mg/kg 1.89 - 2.03 26 R Sc 14.6 mg/kg 13.4 - 15.8 6 I Se 0.78 mg/kg 0.70 - 0.85 23 R Sm 5.61 mg/kg 5.26 - 5.96 6 I Sn 2.32 mg/kg 2.17 - 2.47 23 R Sr 302 mg/kg 296 - 308 41 R Ta 1.03 mg/kg 0.94 - 1.12 6 I Tb 0.696 mg/kg 0.582 - 0.810 5 I Th 9.78 mg/kg 9.34 - 10.2 9 R U 2.45 mg/kg 2.20 - 2.70 6 R V 160 mg/kg 156 - 164 36 R Yb 2.24 mg/kg 2.03 - 2.45 5 I Zn 101 mg/kg 99 - 103 93 R Zr 148 mg/kg 118 - 178 4 I (N) Number of accepted laboratory means used to calculate the recommended or information values and their respective confidence intervals;
( (R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified )
The values listed above were established on the basis of statistically valid results submitted by laboratories which had participated in an international interlaboratory comparison organized by the IAEA Marine Environment Laboratory, Monaco. The details concerning the criteria for qualification as a recommended or information value can be found in the report IAEA/AL/147 (attached).
