Afrina Zainal

3 Questions 3 Answers 0 Followers

Questions related from Afrina Zainal

What is the wavelength to measure OD of Sf9 cell culture?

Hi. Does anyone know what is the wavelength for Sf9 cell culture? Is the wavelength different if i use spectrophotometer or microplate reader? Thanks.

11 October 2017 8,023 3 View

What is the procedure to prepare quercetin standard curve?

Hello. I am confused on how to prepare quercetin standard curve. What is the general idea of preparing standard curve? How should I decide what concentration and appropriate dilution used to plot...

03 October 2017 6,345 4 View

What is the principle of vanillin-sulfuric acid assay to quantify saponin?

I'm doing extraction of saponin from banana peels. i use vanillin-sulfuric acid assay to but got some error. all my samples become black after incubation and give 3.00 absorbance. may i know what...

28 September 2017 7,086 8 View