HPLCObjective:To determine the spectrum characteristics of Dendrobium devonianum by HPLC.Method:HPLC was used with the Zorbax SB-Aq column,the acetonitrile-0.2% methanoic acid solution(gradient elution)was employed as a mobile phase,flow rate was 1.0 mL路min-1,detection wavelength was 270 nm and...
Broad spectrum of stationary phases, including conventional C8 and C18 phases, polar embedded phases, and specialty phases including wide-pore, are available to meet your specific application needs Performance tested to ensure high quality and reliability for pharmaceutical, biopharmaceutical, environmental,...
Selectivity for a wide spectrum of organic acids, including hydrophilic aliphatic acids, aromatic acids, and select amino acids Ideal selectivity for the baseline resolution of DNPH derivatives regulated by various official methods, including EPA 554, EPA 8315, EPA 1667, EPA T...
Briefly, sample pools (100 µL) were derivatized by addition of carbonate buffer, pH 9.0 (100 µL; Spectrum Chemicals Mfg. Corp. New Brunswick, NJ), internal standard (structural analog l-glutamic acid 5-benzyl ester; 50µL), and fluorenylmethyloxycarbonyl chloride (FMOC; 100 µL;...
are hindered phenols, which all have very similar spectra. In this case, you will have to rely only on the retention time for identification purposes. Another alternative is to add a mass spectrometer detector to the system. This will provide an electron impact spectrum which is library ...
中文摘要: 目的:建立不同产地金钗石斛醇提物的高效液相色谱法(HPLC)指纹图谱,并进行其抗炎作用的谱效关系研究。方法:制备12批不同产地金钗石斛(S1～S12)的醇提物样品。采用HPLC法检测,并结合《中药指纹图谱相似度评价系统(2012年版)》建立12批金钗石斛醇提物的指纹图谱并进行共有峰指认和相似度评价。以炎症因子[...
This spectrum may then be stored in a library and compared to a stored library of known additive standards. The only drawback to the library search is that a large majority of antioxidants are hindered phenols, which all have very similar spectra. In this case, you will have to rely only...
作者摘要：唐哲，文爱东，吴寅，赵磊，李宏力，石茹 【卡马西平 DeterminationofcarbamazepineconcentrationinhumansalivabyHPLCanditspharmacokineticstudy 【AbstractAIM摘要:Todeterminecarbamazepine(CBZ)concentrationinhumansalivabyHPLCandstudyitspharmacokinetics.METHODS摘要:ShimpackCLCODSC18(150mm×6mm,5μm)spectrum...
In addition, the same analysis method was used to analyze the absorption components in the serum of Scutellaria baicalensis. 25 prototype compounds were identified, including flavonoids, diterpenoids, iridoid glycosides terpenoids and alkaloids, among which 19 compounds were reported for the first time,...
Broad spectrum of stationary phases, including conventional C8 and C18 phases, polar embedded phases, and specialty phases including wide-pore, are available to meet your specific application needs Performance tested to ensure high quality and reliability for pharmaceutical, biopharmaceutical, environmental,...