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 Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
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Question Asked @ Answers Views     Select
why don't we call POH meter? As we all as PH meter    0  16
why in GC calibration of linearity regression coefficient should not be less than 0.999    1  18
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?    0  14
which effect is mainly responsible for chromatographic separation when silica is the statinary phase at TLC? thanks in advance    0  16
In UV calibration we use Holmium perchlorate solution made in 1.4M perchloric acid The question is that 1.4 M perchloric acid we make is it in water or glacial acetic acid?    0  16
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????    0  50
Why use the Omeprazole as a reference standard to estimate the assay of esomeprazole by HPLC method    0  66
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space    0  77
Explain about empower software of analysing?    1  88
Why methanol & acetonitrile is mostly used for hplc analysis?    1  122
What is the principle of HPLC?    2  130
how the compound separate in coulunm,explain    0  84
what is definition of validation? which components are followed give detail?    0  81
Why water not directed by FID detector¬†    1  103
why we get negative values in uv when i placed sample which has some concetration but not in standard    1  241
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Un-Answered Questions
 
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What should be the level/ Percentage of Arsenic in Arsenic free zinc. 401
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE? 285
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc? 445
What is the difference between spectro meter and spectro photo meter? 4965
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator? 365
what is the purge flow & how to calculate 447
what type of questions asked on analytical balance and also give answers................all pharma companies? 2222
what is the origin to prepare standard operating procedure 320
what is turbidimetric titration?Give 2 examples. 225
how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn, 452
why we do the calibration of limit of stry light in hplc & uv 660
WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE 279
Why use the Omeprazole as a reference standard to estimate the assay of esomeprazole by HPLC method 66
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used? 842
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ? 372
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