USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
2071is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
2216we 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
1919Post New Analytical Chemistry Questions
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?
inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?
Why six unit used for precision?
why require the ph, buffer during hplc mobile phase?
give clarity of linearity and range in method validation
What is rs test why we are performing rs test?
what type of question will ask in the interview of lab chemist.
why we use glass fiber filters use in some situation?
if content uniformity passing but dissolution varrying then what is next step?
What is the use of tlc and hplc? And when and where use?
identification is for unknown? qualification for known? reporting for LOQ?
In which situation we require to prepare the standard solution from sample in Related substance method?
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
before starting analytical method valodation what you checking? and how giving preference to start validation?
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.