Which column is more polar, C8 or C18?
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Why Ethanol is Used for Standardization of GC Head space?
Why we use potassium dichromate in uv calibration Exact reason behind it??
What is split ratio in Gc? Splitless? how requirr to select?
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?
From where require to take the RLD sample?
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?
Loss of linearity in tkn analysis, possible reasons?
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?
Which are the diffrent grades of api in pharma?
Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .
why cone formation during dissolution?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
What is intact assay method development.....?
[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?
What is the diffrence in japan mkt requirement in analytical method validation over US?
