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WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector? what is dissolution? What is unit of KF? what is the significant of pH in HPlc?
1 10089what is dissolution What is unit of KF? what is the significant of pH in HPlc? WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector?
1 8246Practically why we get negative absorption in UV SPECTROPHOTOMETER when the time of cleaning sample analysis. is negative absorption in Uv valid or not?
2455I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
3591In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
3193Why d-blo Ick elements are called outer while f-block elements called inner transition elements
1 4414If i performing one analysis on C8column then the same analysis done on C18 column then what will happen about Rt;Resulution;Peak shape Explain ?
1 8194
What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
how to calculate elemental impurities?
Discuss the potential medical applications of Protactinium isotopes in cancer treatment or imaging techniques.
how you fix the limits of impurities?
How tripod is used?
I need organic mixture analysis viva questions & answers
what are the differences between assay procedures and estimation in chemical analysis? also what is the equivalent factor that we consider in assay analytical procedures?
which cationic polymer is compatible with poly aluminium chloride?
What is the accepted microbial load in APIs as per USP.........?
Why graphite rod is used in nuclear reactor?
Explain the process of protactinium-uranium fractionation and its implications for understanding geological and geochemical processes.
What is the main difference between ODS1 and ODS2 Hplc column.
What is the principle involved in conductometric titration?
why require to add enzymes in capsules dissolution only? is it require to tablet also?
