what does 'n' stands for in spectroscopy?give the formula.1156
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.1000
mode of absorption in alimentary canal?1188
why we calibrate ph meter and balance daily.....but hplc and uv requires quaterly?5 14697
why we are use metthanol variously in kfr?why don't use other solutions?4 8134
what is the difference between IR and FTIR instrument analysis2 8760
how can give the expiry period and restadardisation of volumetric solution1322
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
iam usig ph buffers merk. manually how to prepare ?
why are measure gas flow " ml " in Gas chromatography
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
pharma industries oriented
how to select short coloum and long coloumn for new molecule
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
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 you develop a method in HPLC?
EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE
why we are using hexane in calibration of number of drop per mL
Identify problem faced when mass spectroscopy is used with HPLC system ?