What is the difference between Primay and Secondry
Standard ?
- 6 Answers
- 49920 Views
- College School Exams Tests, Neuland, I also Faced
- E-Mail Answers
Answer Posted / viji
Primary standards are also called as reference standards.
Standards of very high purity. They are procured very less
in quantity and hence would be used up for the
standardization and preparation of inhouse working standards
which are called as secondary standard. From primary
standard a secondary standard can be prepared in adequate
quantity.
| Is This Answer Correct ? | 48 Yes | 10 No |
Post New Answer View All Answers
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
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?
How to know the estimated LOQ concentration in ppm
Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18
how you start RS method development when for new product?
why digestion require in icpms?
What is rs test why we are performing rs test?
how you determine moist.of NaOH sol or NaOH flacks
how to develop the icp ms method? Application of icp ms?
If vendor having more imp than monograph then how to proceed? and how to set spec?
how require to interprit the method precision data of hptlc?
What is third generation HPLC Columns?
What is the calibration of uv process and preparation
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
