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中文名称:纤维素
英文名称:Cellulose订货以英文名称为准。
产品编号:IAEA-C-3CAS:/
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-C-3纤维素Cellulose
IAEA-C-3 cellulose was prepared by W.G. Mook and J. van der Plicht of the Centre for Isotope Research CIO, University of Groningen, Netherlands. The starting material was produced in 1989 from one season’s harvest of ca. 40‑year‑old trees from Sweden, imported to Netherlands. The trees were chopped and bleached to cellulose at a paper factory in Bergum, Netherlands, and supplied to CIO in sheets. The bulk material of about 1 m3 is kept at CIO, where part of it was cut into 50 gram pieces, sealed in plastic and shipped to IAEA. The recommended value of this quality control material is the result of the statistical evaluation of an interlaboratory comparison [1, 2].
Reference date for decay correction: 1991-01-01
Recommended value14C activity
[pMC]Estimated standard
error [pMC]129.41 0.06
Information valued13CPDB
[‰]Standard deviation
[‰]-24.91 0.49 References:
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ROZANSKI, K., Consultants' group meeting on 14C reference materials for radiocarbon laboratories. February 18-20, 1991, Vienna, Austria
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