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 Categories >> Sciences >> Chemistry >> Organic Chemistry
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Question Asked @ Answers Views     Select
why we use 254nm for caffeine analysis as it having maxima at different wavelength?    0  3
why we not use caffeine at 205nm for hplc calibration?    0  2
what are stereomers? how are they classified?    0  13
ex:this product used c18 column but same product used c8 column what happend ?    1  32
uv,ri,pda detactor principles ?    0  16
hplc assay limit 98.0 to 105 why    1  32
why are prepare daily working standard in ft ir    0  39
Why a Na lamp is used in a polarimeter ?    0  33
hardness of distilled water capl   1  67
why antharacene use hplc calibration itc-infotech   0  42
Purified water Microbial load limits as per USP..........?    1  64
what are the checklist need to maintain in API manufacturing area as per USP requirements.......?    0  50
What is the accepted microbial load in APIs as per USP.........?    0  54
what is functionality of polymer? how can we get theoretical and practically? atul   0  70
WHAT IS THE TEMPERATURE reddy-labs   1  141
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Un-Answered Questions
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why in uv calibration in Limt of absorbance parameter specific absorbance is calculated only for selected wavelength 405
seminal on pyrimidine 330
What is a repartition coefficient? 361
Explain Thiele's structure for benzene. What is the difference between thiele's structure and modern structure (resonance hybrid) of benzene? 898
Assuming that the density of the solution is the same as the density of water (density of water=1.000g/ml), calculate the mass of water for both reactions using: mass of water = Volume of water Density of water. Mass of water = 194
why antharacene use hplc calibration 42
can you pls provide chemistry previous papers for the post of trainee chemist in ap genco 308
which question ask me in grasim in inerview? 315
How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN? 468
Why we are use glass viscometer, and what is calculation manual calculation formula as per USP. How many types of viscometre in glass type viscometer. 280
What is a proteic unit? 446
What is the difference between the photochemical reaction and photo-dynamic reaction? 240
How hydrate is forming along with API? 345
sir, what does happen ............? naphthal+benzene(or)toluee........> ? 238
what happens to the unit particles of a solute when it dissolves on a liquid? 297
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