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 Categories >> Sciences >> Chemistry
 
  Organic Chemistry (241)   Inorganic Chemistry (98)   Analytical Chemistry (952)   Physical Chemistry (57)   General Chemistry (290)
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Question Asked @ Answers Views     Select
pharma industries oriented    0  24
what is internal standard define    0  32
Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong?     0  45
what is the diference between spectroscopy and chromatography    1  119
what is the basis of separation in chromatography?    0  105
what is the difference between hplc and uplc?    0  142
how can u seperate polar compounds in hplc ?    0  92
how will you do the prep for unstable componds?    0  50
what is the maximum flow rate in prep hplc    0  57
can i use hplc detector to uplc and why?    0  51
the reaction in which large molecule split up to their smaller units by the addition of water molecules is called as     0  86
What is OOS AND OOT?    1  159
Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6    0  633
Why base line not start from zero in GC Chromatography analysis.    0  592
What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.    1  2152
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Un-Answered Questions
 
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How can we calculate "confidence interval" in analytical method validation? Pl. explain with example. 1378
what are the standard methods for HPLC? 763
how do we get usp reference standard potency? 460
why all liquid raw materials fallows residue on evaporation at 105Degree temp. but methanol bp 60Degree 489
what is the disso medium for tropsiun chloride 325
What is the calibration procedure for Malvern MS2000 particle size analyzer and acceptance criteria? 710
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example. 700
WHAT IS THE USE OF STARTER ????????? 487
Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration? 402
What is hybridyzation ? How can i find that which type hybridyzation in perticular compound like in CH4(hy is sp3). 1097
What modification is required for the atomic theory in order to explain the existence of isotopes, and modern view of atomic nuclei and electrons? 591
cefoperozone and sulbactam inj. hplc test method 634
what is full form of RVT & LVT MODEL OF BROOKFIELD VISCOMETER ? DIFFERENCE BETWEEN THEM? 4638
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method? 1419
How would you separate naphthalene and benzoic acid in an ethyl acetate solution? 1736
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