Emmanuel Duval

3 Questions 4 Answers 0 Followers

Questions related from Emmanuel Duval

Why does my Alumina powder suddently get sticky to glass column and pipet Pasteur today, hindering correct elution ?

Hi all. I am facing trouble with my alumina (neutral activated Grade II), with which I used to separate marine fuel components on a chromatography column packed with alumina gel made of alumina...

24 April 2023 8,615 0 View

How to trim and manipulate a database of homologous functional gene's amplicons, cloned in a plasmid and Sanger's sequenced (F/R) ?

Hello, I'm looking for the diversity of homologous functional genes among 4 different environmental samples. To this end, I amplified them by PCR using degenerated primers (CODEHOP), cloned 96...

23 July 2019 8,036 3 View

Database of spectra of absorbtion for organic molecules UV/visible ?

Hi everyone, does it exist a database where I can find the spectrum of absorption for organic molecules, in UV or visible wavelenght ? At least some minima and maxima ? I have already tried on...

09 August 2018 9,468 3 View