Abstract：
:An RRLC method capable of simultaneous identification and rapid quantification of six biologically active compounds (salidroside, tyrosol, rosarin, rosavin, rosin, rosiridin) in Rhodiola rosea L. and two active compounds (eleutheroside B and eleutheroside E) in Eleutherococcus senticosus Maxim. was developed. The chromatographic analyses were performed on a reversed phase Phenomenex C18 (2)-HST column at 40°C with a neutral mobile phase (purified water and acetonitrile) gradient system at a flow rate of 1.0ml/min and UV detection at 205 and 220nm simultaneously. Baseline separation of eight active compounds was achieved within 8min. This developed method provides good linearity (R>0.9997), precision (RSD<1.99%) and recovery of the bioactive compounds. The RRLC method developed is capable of controlling the quality of R. rosea and E. senticosus raw herbs, commercial extracts, as well as polyherbal formulations containing R. rosea and E. senticosus as ingredients. This RRLC method is accurate and sensitive; in addition, it greatly increases sample analysis throughput with reduced analysis time, which is suitable for routine quality control analysis.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Ma YC,Wang XQ,Hou F,Ma J,Luo M,Lu S,Jin P,Chen A,Xu I,Patel AV,Gorecki Ddoi
10.1016/j.jpba.2011.03.013subject
Has Abstractpub_date
2011-07-15 00:00:00pages
908-15issue
5eissn
0731-7085issn
1873-264Xpii
S0731-7085(11)00147-6journal_volume
55pub_type
杂志文章abstract：:The concentration of TiO(2) in a cream formulation has been non-destructively measured using Raman spectroscopy without further sample pretreatments. The distribution of TiO(2) particles in a highly viscous cream may not be homogeneous on a microscopic scale and local aggregation of the particles is possible; therefor...
journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
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abstract：:The separation, isolation and identification of drug metabolites from complex endogenous matrices like urine, plasma and tissue extracts are challenging tasks. Metabolites are usually first identified by mass spectrometry and tentative structures proposed from product ion spectra. In many cases mass spectrometry canno...
journal_title：Journal of pharmaceutical and biomedical analysis
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