Determination of Enantiomeric Composition of Substituted Tetrahydroisoquinolines Based on Derivatiza

来源 :美国分析化学(英文) | 被引量 : 0次 | 上传用户:onlylisong
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A method for the analysis of the optical purity of a series of chiral substituted tetrahydroisoquinolines (THIQs) was developed. The method is based on pre-column derivatization of the analytes with the derivatization reagent (–)-(1R)-menthyl chloroformat
其他文献
A sensitive and simple solid phase extraction method for the simultaneous determination of trace and toxic metals in environmental samples has been reported. Th
The pKa and the isosbestic point of the universal pH indicator Carlo Ebra 1-11 (catalog number 45712) were determined using UV-Vis spectrophotometry. Aqueous bu
性病、艾滋病流行是当前我国突出的公共卫生和社会问题,男男性行为者(MSM)人群又是性病、艾滋病传播的高危人群和传播桥梁.开展这一人群性病、艾滋病防治知识调查,对制定预防
许多慢性气道炎症性疾病如慢性阻塞性肺疾病(COPD)、支气管哮喘、支气管扩张、肺囊性纤维化和鼻息肉等都存在粘液高分泌.近年来,有关呼吸道慢性炎症性疾病的研究显示了肺泡巨
Environmental pollution caused by release of toxic metals (rare earth elements, etc.) into aquatic environment as a result of industrial activity is one of the
新生儿颅脑损伤是新生儿早期最常见的疾病之一,主要包括缺血、缺氧性脑病和新生儿颅内出血,病因主要与缺氧、产伤等有关.缺血、缺氧性脑病多发生在窒息的足月儿或早产儿[1],
We report on the use of titanium dioxide nanoparticles (NPs) coated with poly-thiophene for the preconcentration of copper and silverions. The NPs were prepared
There were several techniques determined for the analysis of citrate and citric acid mixtures in the pharmaceutical dosage forms. Titration methods, photometric
据悉,改革后的流转税将由增值税、消费税和营业税三税组成,统一适用于内资企业和外商投资企业。取消对外商投资企业征收工商统一税。根据新的方案,对商品的交易和进口普遍征
Despite the worldwide increase in the consumption of PET-bottled mineral waters compared to tap waters encouraged by its microbiological and chemical safety for