A quantitative analytical method for 4 . 5 % beta - cypermethrin ec by gc was introduced , dicyclohexyl - o - phthalate was selected as the internal standard 摘要本文介绍了以邻苯二甲酸二环已脂为内标物，对4 . 5 %高效氯氰菊脂乳油进行有效成份测定的气相色谱分析法。
A quantitative analytical method of 5 % diethylmethylbenzamide in drive - worms floral - water by gc was introduced , dibutyl phthalate was selected as internal standard 摘要本文介绍了以邻苯二甲酸二丁脂为内标物，对5 %避蚊胺驱虫花露水进行有效成份测定的气相色谱分析法。
Conclusion : in order to get a stable result in similarity calculation for tcm fingerprints , the retention time and internal standard peak must be standardized in treatment procedure 结论：相似度计算中，内标峰选择和保留时间校正须规范化，才能获得稳定的计算结果。
According to these the quantitative analysis for product citronellol is carried out by gc with fid ( fire iron detector ) as detector using hypnone as an internal standard 采用标准图谱比较和添加产物标准品对照的方法进行定性分析；确立了苯乙酮为内标物和用内标法进行定量分析的方法。
Analytical condition were as follows , column : 10 % modified polyethylene glycol 20m on acid washed 201 , 2m column with 3 mm i . d . , fid as detector , phe - nylmethyl ketone as internal standard compound 以10 %改性聚乙二醇20m为固定液，苯乙酮为内标物，氢火焰离子化检测器，内标法定量分析异辛酸。
A full - length enolase cdna of 1734bp from d . salina ( genebank accession no . 245549 ) was acquired by 5 " race and 3 " race . the sequence of enolase gene from d . salina ( dseno gene ) was analyzed by using bioinformadcs 选择盐藻23srna作为内标基因，利用半定量rl ，一pcr对经不同渗透震动后( o一48小时)烯醇酶基因转录水平的表达量进行了测定。
During pretreatment , lyophilization was applied to avoid the loss of volatile organic acids ; for standard curves of internal standard , double internal standards were applied to obtain better quantitative results 在样品的前处理中使用了冷冻挥干技术，避免了前处理中挥发性有机酸的损失；在色谱内标标准曲线定量时引入了双内标，从而得到了较好的定量结果。
Results : when similarity was calculated between control and sample chromatography fingerprints , differences were found using different data treatments procedure , for example , correlating retention time and selecting internal standard peak 结果：保留时间校正前后相似度结果差异较大，内标峰选择与否和选择不同内标峰的各图谱与对照图谱的相似度均有差异。
On the basis of the mentioned above and the real - time pcr principal , we have designed and optimized the primers and probes , set up the real - time qualitative pcr detection system . meanwhile , using the endogenous zein - maize and lectin - soybean as interior collate gene , epsps and cryia ( b ) as target genes , set up the real - time quantitative pcr detection system 在此基础上，根据荧光pcr原理，设计、优化引物和荧光探针，建立了荧光pcr定性检测方法体系，并以玉米内源基因( zein ) 、大豆内源基因( lectin )作为内标基因，以epsps和cryia ( b )作为目的基因，建立了荧光pcr定量检测方法体系。
You can also formulate corresponding 80 % , 100 % and 120 % of reference substance solutions according to tested items of calibration factors of each type , plus specified amount of internal standard solution to make 3 different density solutions , blend samples for continuous 3 times , and calculate calibration factor 也可按各品种校正因子测定项下，配制相当于80 % 、 100 %和120 %的对照品溶液，加入规定量的内标溶液，配成3种不同浓度的溶液，分别迸样3次，计算平均校正因子。
