Answer Posted / swathi
Take 0.01M KH2PO4 (1.36g) in 1000mL water and sonicate it
properly and check the pH and adjust the pH to 6.8 by using
Orthophosphoric acid if pH is more than 6.8,or use KOH or
NaOh if pH is less than 6.8
| Is This Answer Correct ? | 18 Yes | 8 No |
Post New Answer View All Answers
what type of questions asked on analytical balance and also give answers................all pharma companies?
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?
What is the main difference between ODS1 and ODS2 Hplc column.
what you do when compound having dwel wavelength?
in stress study if your api not soluble in hcl naoh h2o2 then what require to do?
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
In performance Check of GC Why Hexadecane Peak is ConsideredÂ
What is a difference between potency and purity?
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
How to fix the sample conc. in Related substances test by HPLC?
what is classification of elemental impurities? what is risk assement in elemental impurities?
what is turbidimetric titration?Give 2 examples.
I 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?
For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
in dissolution why pool sample needed? in which type of drug pool sample need?
