Seyed Jamaleddin Shahtaheri

2 Questions 18 Answers 0 Followers

Questions related from Seyed Jamaleddin Shahtaheri

In sample prep. when ion-pair reversed-phase SPE is used; why ion-pair reagent should be added to both sample and reversed phase (NOT one of them)?

In ionic/non-polar interaction mechanisms, either for cationic or anionic compounds

03 December 2018 1,607 4 View

I am involve with sample preparation for trace residue analysis of toxicant wondering whether I need to add internal standard at extraction stage?

However, in case of not getting appropriate external calibration curve at the analysis stage, we do need to add internal standard to delete possible systematic analytical instrument system errors.

08 November 2018 6,942 29 View