富硒酵母标准物质
【编号】:NRCC-SELM-1 【名称】:富硒酵母标准物质 【规格】:8g 【价格】:4000元 ![]() 富硒酵母标准物质
名称:Selenium enriched yeast certified reference material
编号:NRCC-SELM-1
规格:8g
SELM-个 Selenium enriched yeast Certified Reference Material SELM-1 is a selenium enriched yeast Certified Reference Material (CRM) from the NationaResearch Council Canada (NRC) with information on total selenium, selenomethionine andmethionine content. A unit of SELM-1 consists of approximately 8 grams of selenium enrichedyeast in an amber glass vial. Table 1 shows those analytes for which certified values have been established for SELM-1Certified values are based on unweighted mean results from data generated by threeindependent sets of measurements in the case of selenomethionine (SeMet) and methionine(Met) and two independent measurements for total selenium. The expanded uncertainty (UcRmin the certified value is equal to URm= ku. where uis the combined standard uncertaintycalculated according to the JCGM Guide [1] and k is the coverage factor. The value of uc isdetermined from the combined uncertainties of the various analytical methods (ucha) as well asuncertainties associated with homogeneity (unom) and stability (ustab). lt is intended that UcRwencompasses every aspectthat reasonably contributes to the uncertainty ofthe measurand 2,3A coverage factor of two (k= 2) was applied.
此对照品、标准品由【中检计量】提供网站查询购买服务
注:点击cas,或者搜索:名称、编号、cas均可显示价格
|
上一篇:原多甲藻酸(AZA1,AZA2,AZA3)测定标准溶液 | 下一篇:墨鱼中微量金属砷甜菜碱及甲基汞标准物质 |
---|
热销产品 新品上架
产品推荐 相关产品
- ·NRCC-CRM-DTX2-b 鳍藻毒素 DTX-2 标准品
- ·NRCC-CRM-NEO-d 新石房蛤毒素(neosaxitoxin,NEO) 标准品
- ·NRCC-CRM-GTX1-4-d 膝沟藻毒素 GTX1 GTX4 混合溶液 标准品
- ·NRCC-CRM-dcGTX2-3-c 脱氨甲酰基膝沟藻毒素 dcGTX2 dcGTX3 混合溶液 标准品
- ·NRCC-CRM-PTX2-b 扇贝毒素-2 pectenotoxin-2 (PTX2) 标准品
- ·NRCC-MESS-4 海洋沉积物中微量元素及其他成分标准物质
- ·NRCC-CRM-MCRR 微囊藻毒素-RR microcystin-RR 标准品
- ·NRCC-CRM-Zero-Mus 紫贻贝组织的阴性对照品
- ·NRCC-PACS-2 微量元素/butyltins 标准品
- ·NRCC-CRM-YTX-c 虾夷扇贝毒素 标准品
- ·D106443 3,4-二氨基甲苯分析标准品
- ·BTLB-263 比沙可啶EP杂质A标准品
- ·VIP(X)10752 N-反式阿魏酰-3-甲氧基酪胺标准品
- ·VIP(IR)128393 [2H3]-樟脑准品
- ·T130115 3-(三氟甲氧基)苯甲醚,97%
- ·USP-1356803 乳果糖标准品(Lactulose)
- ·ASD-P-032S 灭多威标准品 100 μg/mL于甲醇, 1mL
- ·OTS-030908-03 磷酸三苯酯标准品 500mg/于叔丁基甲醚, 1mL
- ·A616685 N-(6-氨基-2-吡啶基)-2,2-二甲基丙胺标准品
- ·100618 (S)-(+)-3-甲基-2-丁胺, 98+%,ee 99%