The retention time of a peak in the HPLC of the sample corresponded to that of ferulic acid.
高效液相色谱表明样品在与阿魏酸相同保留时间处有吸收峰。The relative retention time and relative peak area of every characteristic principle were calculated by cinnamic acid as reference peak.
以肉桂酸为参考峰，计算各特征成分相对保留时间比和相对峰面积比。There is an approximate linear relationship among the column inlet pressure, the retention time of solvent, and the half peak width.
理论和实验均表明：溶质的保留时间，流出峰半峰宽与柱前压倒数近似呈线性关系；You see only the mailboxes that have been disconnected within the retention period that is specified for the mailbox database.
只能查看在为邮箱数据库指定的保留时间内断开连接的邮箱。If hair does not come off easily, re-cover and leave Remover on a few more minutes, but no longer than 10 minutes.
如果毛发不能轻易脱下，延长保留时间，但是不要超过10分钟。Is there a written procedure that defines how quality records are stored, protected and disposed of as well as a defined retention period?
有无书面程序来规定如何保存，保护，处理品质纪录和保留时间？Chemical reference chromatogram is used for component assign, peak retention time adjustment and quantitive analysis purpose.
其中“化学对照品”图谱用于对色谱峰指认、保留时间校正以及定量计算。Research has demonstrated this product to be better absorbed and retained longer compared to several other forms of Zinc tested.
研究显示，让产品更好地吸收和保留时间比其他几种形态锌的测试。Calculate the similarity by similar software between the fingerprint spectrum which reflect the similarity of retention time.
用相似度软件计算相似度来考察样品间相似情况（针对保留时间）。