When ever we perform system suitability,inject the
corresponding standard 6 times why? is thair any reson
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which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?
Why Ethanol is Used for Standardization of GC Head space?
0 Answers Anuh Pharma, Cipla, Finar Chemicals, Hetero, Sun Pharma,
Difference between hlaf and rlaf
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
Why should we use Potassium iodide and Hydrochloric acid during preparation of Iodine Molar solution?
if the flow rate is increases then any changes in retention time in hplc
Whya the need of Specificity to do in Analytical Method Validation ?
what is analytical chemistry all about?
What is FDA form 482c?
Organic Chemistry 
