【求助】SCCPs 标样浓度问题

SCCPs，以C10-C13的Cl平均含量为51.5%的混合组份。

即总量

标准物质证书上应该有具体说明。

没有具体说明噢

那混标中的C10H17Cl5、C10H16Cl6等化合物的浓度还是未知的喽？

标样说明书上是有这么一段话：
The uncertainty/tolerance of this standard is +/- 10%, calculated in accordance with the EURACHEM/CITAC guide-Quantifying Uncertainty Uncertainty in Analytical Measurement -Second Edintion.The uncertainty given is the expanded combined uncertainty and represents an estimated standard deviation equal to the positive square root of the total variance of the uncertainty of components.The expanded uncertainty is U which is Uc(y)*k,where is the coverage factor at the 95% confidence level (k=2).The expanded uncertainty is based on the combination of uncertainties associated with each individual operation involved in the preparation of this product

什么意思呢？

100 ng/ul就是100ug/ml啊

100 ng/ul就是100ug/ml啊

应助达人

就是含有100 ng/ul的SCCP，只是其中SCCP的成分比较复杂