How to calculate LOD & LOQ in HPLC Validation Method
Answer Posted / guido
Look at DIN ISO 32645 how to "really" calculate LOQ and
LOD. You need to perform a linearity test before !
Everyt5hing else is not very serious.
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
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
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.
what is mean by peak intigrity?
what is biorelivent dissolution media?
What is delay volume?
Tell me something about Vitamin A test method by HPLC
In which situation we require to prepare the standard solution from sample in Related substance method?
What is third generation HPLC Columns?
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately
Why perchloric acid used for potentiometric titration
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
acceptance criteria for lod & loq by standard deviation of response and slope??
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?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
if you have given one product then how you determine the impurity in that?