In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?
Why PH range from 0to14.
What is descriminatory disolution medium ?
from where i get mortar pastle for glass bottle crush? it's required for testing of it?
key components in hplc?
How to Calibrate NMR instrument ?
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 hplc calibrated
differnc btw c18 and c-8 column
which solution used for detecting factor of k.f.titroter except water
what is the diference between spectroscopy and chromatography
in HPLC injection volume is increase ,R.T will increase ?