1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
1305My 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
1118We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
1323Post New Analytical Chemistry Questions
Basic principle of ESI?
What is stray light in uv what are units for stray light
In IR spectra, generally a molecule vibrates without apply emr or ir light?
How would you decide dissolution medium for NCE compound of class I drug
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
In which situation we require to prepare the standard solution from sample in Related substance method?
how you determine moist.of NaOH sol or NaOH flacks
Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6
what is the origin to prepare standard operating procedure
How to establish relative response factor for hplc. Why it is required?
how require to interprit the method precision data of hptlc?
How much is the standard area for glc analysis
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
