Interested to Buy Any Domain ? << Click Here >> for more details...
What is primary & Secondary Standard ? Give Example
- 17 Answers
- 166260 Views
- Cipla, Lupin, I also Faced
- E-Mail Answers
Answer Posted / faisal jameel
Primary standard
1- are those whose purity is already known.
2-non reactive.
3-used to validiate secondary standard.
4-are thermostable.
Ex- NACL, SODIUM OXALATE, NA2CO3.
Secondary standard-
1-reacts with moisture.
2-not thermostable.
3-validiate by primary standard.
4- not stable at room temperature.
Ex-NAOH, HCL, H2SO2
| Is This Answer Correct ? | 29 Yes | 6 No |
Post New Answer View All Answers
how the compound separate in coulunm,explain
How to fix the sample conc. in Related substances test by HPLC?
In 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.
if you have given a blank water how you analyse by general analytical techniques?
in OSD forms require to use gas chromatography?
What is the use of tlc and hplc? And when and where use?
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
What is mean by PDR?
What is shaking level in GC?
What is the formula for relative diffrence for standard solution in solution stability in validation?
Why perchloric acid used for potentiometric titration
What is control room temperature and which guide line says?
Related substance method equivalency on control sample or spiked sample?
If vendor having more imp than monograph then how to proceed? and how to set spec?
CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?
