ABSTRACT
OBJECTIVE:To establish a method for simultaneous determination of gallic acid,protocatechuic acid,catechuic acid,corilagin and brevifolincarboxylic acid in Geranium carolinianum. METHODS:HPLC was performed on the column of Won-daSil C18 WR with mobile phase of acetonitrile-0.1% Phosphoric acid(gradient elution)at a flow rate of 1.0 ml/min,the detection wavelength was 280 nm,the column temperature was 40 ℃,and the volume injection was 20 μl. RESULTS:The linear range was 0.02-20.02 for gallic acid(r=0.999 9),0.01-20.10 for protocatechuic acid(r=0.999 7),0.02-19.78 for catechuic acid(r=0.999 6), 0.02-20.02 for corilagin(r=0.999 9)and 0.02-20.10 for brevifolincarboxylic acid(r=0.999 5);RSDs of precision,stability and re-producibility tests were lower than <3.0%;recoveries were 95.1%-100.6%(RSD=2.20%,n=6),95.8%-100.6%(RSD=1.74%,n=6),95.1%-101.9%(RSD=2.71%,n=6),97.7%-103.1%(RSD=2.04%,n=6)and 95.3%-99.0%(RSD=1.46%,n=6). CONCLUSIONS:The method is simple,accurate and reproducible,and can be used for the contents determination of gallic ac-id,protocatechuic acid,catechuic acid,corilagin and brevifolincarboxylic acid in G. carolinianum.
ABSTRACT
Objectives To explore the psychological states of chronic hepatitis B(CHB)patients during family disinfection and isolation:a qualitative study.Method Using random sampling,10 CHB patients from the Eighth People’s Hospital of Guangzhou during Sep 2012 and Feb 2013 were selected for the investigation by way of semi-structured in-depth interviews.Results Ten patients participated in the interview and five themes were extracted:1)no special mental burden because CHB patients believed they should conduct family disinfection and isolation;2)group psychology for their lack of knowledge;3)suspecting the effect of disinfection and isolation;4)worrying about involving their families because of guilty;5)feeling isolated,self-abased,sensitive and longing for being accepted and understood.Conclusions The psychological states are complex during disinfection and isolation.So,a feasible domestic disinfection and isolation plan should be worked out.Meanwhile,enhanced mental guidance and family supports are essential for them to get rid of worries and adapt themselves into family disinfection and isolation.