Interested to Buy Any Domain ? << Click Here >> for more details...
What is primary & Secondary Standard ? Give Example
- 17 Answers
- 167028 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 to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
Why Ethanol is Used for Standardization of GC Head space?
before starting analytical method valodation what you checking? and how giving preference to start validation?
Which is the highly polar and highly non polar column in HPLC?
how you start RS method development when for new product?
How we can identify process related and degradation impurity in single method with short period?
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
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?
on the basis of bcs class how to proceed the solubility?
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
What is gelatinization?
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
how to set sample and standard concentration in RS method?
what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?
how to decide for one product require water content or LOD?
