Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


what is role of pH in mobile phase

Answers were Sorted based on User's Feedback



what is role of pH in mobile phase..

Answer / samresh pal

pH Play the role for ionisation and unionisation of drug molucule in mobile phase..if our drug moity is acidic nature and our mobile phase pH is acidic then our drug moity behave to unionised and unionised molecule behave like hydrophobic or nonpolar so drug moiety more attract to stationary phase( coloum) so it not eluted with mobile phase readily and mor time expend in coloum.

Is This Answer Correct ?    7 Yes 1 No

what is role of pH in mobile phase..

Answer / hitesh tank

Specific columns depends on mobile phase pH. Column life's depend on pH it should be 2 to 8 .other wise high pH mobile phase create silanol and silica get dissolved, law pH flushed out stationary phase from the columns.

Is This Answer Correct ?    4 Yes 0 No

what is role of pH in mobile phase..

Answer / hitesh tank

HPLC Analysis depend on pH ,Peak symmetry, retention time, selectivity and impurities detection, RRT,etc.

Is This Answer Correct ?    2 Yes 2 No

Post New Answer

More Analytical Chemistry Interview Questions

WHAT IS DIFFERENCE BETWEEN RRT AND RRF IN HPLC

2 Answers   Cadila,


What is difference b/t uv detector and rid

5 Answers  


how can we determine RRF value in HPLC FOR CALCULATION OF IMPURITY ?

4 Answers   Macleods,


how you establish the LOQ?

0 Answers  


what is kf principal

5 Answers   Dr Reddys, Indian Immunologicals,


how to select short coloum and long coloumn for new molecule

0 Answers   Rampex Labs,


Difference between related substances & impurities

2 Answers   Biocon,


How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

0 Answers  


How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

0 Answers   Cipla, Rampex Labs,


Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

0 Answers  


Why do we use KCl ,K2Cr207,Toulene & Halonium oxide for the caliberation of UV

2 Answers   Apotex,


why KF factor is between 4.5 to 7.5 mg/ml ? why ? why sometime pyridine is used in analysis like in raw material solvent like acetone etc?

11 Answers   Aurobindo, GVK, Sohan Healthcare,


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)