what is difference between UV - VISIBLE MODEL NO like
1600,1601,1700 etc ? plz explain me
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What is the reason for using the 900ml of dissolution medium
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.
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When performing Moisture content how to you say only Methanol react with water not product Explain?
what is the results if we use ODScolumn instead of BDS column ,(ther parameter is same for column) in assay method ?
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
which brands HPLC COLUMN available in market
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what is difference between GC & GC-HS
how require to select dissolution media? what is discrimination?
what is rt and rrt? how we find rrt? relation between rt and rrt/