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What is rs test why we are performing rs test?
Why are use silicon oil mr?
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
Qc interview questions
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
how to decide for one product require water content or LOD?
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
how pda detector works over uv?
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
can i use hplc detector to uplc and why?
if content uniformity passing but dissolution varrying then what is next step?
if instrument calibration fails then what require to do?
What is a difference between potency and purity?
