Measurement of effective constituents contents in rhubarb by capillary electrophoresis / 重庆医学
Chongqing Medicine
; (36): 220-222, 2018.
Article
em Zh
| WPRIM
| ID: wpr-691778
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WPRO
ABSTRACT
Objective To adopt the capillary electrophoresis(HPCE) for detecting the contents of emodin,chrysophanol and rhein in the extract of rheum officinale.Methods The detection was executed with a fused-silica capillary column(67.4 cm× 75.0 μm,effective length 51.0cm) as the separation column.The buffer solution consisted of 60 mmol/L Na2B4O7,40 mmol/L Na2CO3 and 40 mmol β-cyclodextrin(pH 8.9).The detection wavelength was 254 nm.Results RSD of precision in emodin,chrysophanol and rhein was 1.79%,4.46% and 2.30%.respectively The linear range of 3 components was 1.1-19.0 mg/mL;the average recovery rates of emodin,chrysophanol and rhein were 100.14 %,99.65 % and 98.44 % respectively,RSD was 2.43 %,2.54 % and 2.02% respectively(n=3).Conclusion The method can be used in the content determination of rheum officinale extract.
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WPRIM
Idioma:
Zh
Revista:
Chongqing Medicine
Ano de publicação:
2018
Tipo de documento:
Article