Christoff Truter

4 Questions 10 Answers 0 Followers

Questions related from Christoff Truter

Drying solid phase extraction (SPE) extracts - HLB/C18/C8 etc with N2 gas or natural air?

Dear All, Solid phase extraction (SPE) commonly forms part of LCMS, GCMS analytical chemistry or in vitro bioassay testing workflows to screen for organic environmental chemicals. Once samples...

01 November 2022 8,728 3 View

Precipitate forming in Turbofect (polyalkyleneimine) in vivo transfection reagent containing PEG and DNA plasmids?

Dear All, I am attempting in ovo embryo transfections using Turbofect transfection reagent administered through microinjection. A precipitate however forms once I add the reagents prior to...

03 December 2020 4,885 1 View

Is it allowed to rank data for use in mixed models?

I enjoy the mixed model approach to analyse repeated measures data. Is it "legal" to rank (transform) data applied in mixed models? I typically apply the boxcox transformation when the data is...

19 April 2014 3,225 3 View

Are micropollutants, like heavy metals, a figment of our imagination?

The term "micropollutants" is used in many scientific papers. It seems like chemicals of emerging concern are often thrown into the micropollutant box. But how can a pollutant be classified as...

01 January 1970 6,594 13 View