yyyyyyyyyang
第2楼2009/02/23
文档的标题是:chemical reference substance
然后下面是一些参数,其中有:
storage conditions: room temperature
……
mol. weight base: 268
mol. weight addition salt:0
mol. weight addition solvent:0
文档中与其相关的还仅有一处
purity factor P =corresponds with the content of the reference substance, taking into account: total solvents, total water content and achiral chromatographic impurities
还望不吝赐教!
happyjyl
第6楼2009/02/23
大致明白了。这讲的是化学对照品。
purity factor P =corresponds with the content of the reference substance, taking into account: total solvents, total water content and achiral chromatographic impurities
化学对照品的纯度并非百分之百,因此以对照品的测定结果作为参照时,应先乘以对照品的纯度因子P(purity factor P)。对照品的纯度即该化学物质的含量,计算对照品纯度时应考虑所有的溶剂、水分含量(吸附水、结晶水等)和非手性的色谱杂质。
mol. weight addition salt:0其实应该是mol. weight of addition salt,意思是不含盐。(比如奥昔布宁对照品,而非盐酸奥昔布宁对照品)
mol. weight addition solvents:0 意思是不含溶剂。