Abstract
Rutin as standard sample,NaNO2-Al(NO3)3 was used as a chromogenic agent,total flavonoids in elsholtzia rugulosa flowers was determined by spectrophotometry at 510nm.Regression equation is A=0.01036C+0.00527,correlation coefficient r=0.9997,linearity range of obeying Bill Law is 8.12—81.2mg/L of content of total flavonoids in elsholtzia rugulosa flowers extraction solution.The recoveries and RSD are 97.71%—100.86% and 1.39% respectively.This method is covnenient,simple,rapid and is suitable for dintermination of total flavonoids in elsholtzia rugulosa flowers.
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Claims 6
Claim · model-written summary
The calibration regression equation for total flavonoids by spectrophotometry was A=0.01036C+0.00527.
- Taxon
- Elsholtzia RugulosaElsholtzia rugulosat0
- Outcome
- Regression equatione1
- Value
- A=0.01036C+0.00527e1
Verbatim
e1“Regression equation is A=0.01036C+0.00527”
t0“Elsholtzia Rugulosa”
Claim · model-written summary
The correlation coefficient of the calibration was r=0.9997.
- Taxon
- Elsholtzia RugulosaElsholtzia rugulosat0
- Outcome
- correlation coefficiente1
- Value
- r=0.9997e1
Verbatim
e1“correlation coefficient r=0.9997”
t0“Elsholtzia Rugulosa”
Claim · model-written summary
The linearity range for total flavonoids in the extraction solution was 8.12 to 81.2 mg/L.
- Taxon
- Elsholtzia RugulosaElsholtzia rugulosat0
- Outcome
- linearity rangee1
- Value
- 8.12—81.2mg/Le1
Verbatim
e1“linearity range of obeying Bill Law is 8.12—81.2mg/L”
t0“Elsholtzia Rugulosa”
Claim · model-written summary
The recoveries of the method were 97.71% to 100.86%.
- Taxon
- Elsholtzia RugulosaElsholtzia rugulosat0
- Outcome
- recoveriese1
- Value
- 97.71%—100.86%e1
Verbatim
e1“The recoveries and RSD are 97.71%—100.86% and 1.39% respectively”
t0“Elsholtzia Rugulosa”
Claim · model-written summary
The RSD of the method was 1.39%.
- Taxon
- Elsholtzia RugulosaElsholtzia rugulosat0
- Outcome
- RSDe1
- Value
- 1.39%e1
Verbatim
e1“The recoveries and RSD are 97.71%—100.86% and 1.39% respectively”
t0“Elsholtzia Rugulosa”
Claim · model-written summary
The authors conclude the method is convenient, simple, rapid and suitable for determining total flavonoids in Elsholtzia rugulosa flowers.
- Taxon
- elsholtzia rugulosaElsholtzia rugulosae1
- Outcome
- covnenient,simple,rapid and is suitable for dintermination of total flavonoidse1
Verbatim
e1“This method is covnenient,simple,rapid and is suitable for dintermination of total flavonoids in elsholtzia rugulosa flowers”