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why in hplc peaks are in positive side(it means upside) not in
negative side?
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Answer Posted / divya
which is exothermic reaction.
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which batch require to use for analytical method validation?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
How doing qbd practically?
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?
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Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
Why potassium dichromate is used in calibration of uv?
how much mass should be there in volumetric flask while in preparation of sample for assay?
What is similarity factor?
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
before starting analytical method valodation what you checking? and how giving preference to start validation?
What is Band broading effect explain
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
could negative ions be produced by bombardment process in mass spectrometry?
