1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
1300My 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
1111We 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
1313Post New Analytical Chemistry Questions
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
if you have given one product then how you determine the impurity in that?
What is the acceptance criteria for moisture balance when calibrated with sodium sulfate
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
Why sodium hydroxide used for maintain pH of phosphate buffer
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
How do we fix the sample concentaryion in hplc method development?
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
what are the guidelines for analytical method validations?
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol
