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In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
3189If i performing one analysis on C8column then the same analysis done on C18 column then what will happen about Rt;Resulution;Peak shape Explain ?
1 8187why using Potentometry What Purpose? differance between manual and potentiometry? why using Some of materials in usig potentiometry? What is use of mericuric acetate in Potentiometry
1 5820iam using ph instrument lab india make.3ponit and 5point.in calibration time 3point slope will come 98.89and 96.87.that limit is 85 to 105.what basis slope will come.any calucalation between them.5point wiicome slope 99.89?why 3p0int came 2 values
1 5503when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
ABC,
2097when we have polar type of sample and solvnt hen which type of stationry phase we have to use
3 7767Post New Analytical Chemistry Questions
WHY given much noise PDA dector then VWD Dector
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
What if impurity area in control sample coming more as compared to LOQ level of impurity ?
if identification threshold crosses the limits then what next step?
why holium oxide prepared in 10% HCLO4 SOLUTION
how can give the expiry period and restadardisation of volumetric solution
how you determine moist.of NaOH sol or NaOH flacks
if you have given a blank water how you analyse by general analytical techniques?
iam usig ph buffers merk. manually how to prepare ?
My 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
what is mean by nitrosamine impurities?
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
what are the standard methods for HPLC?
why multimedia dissolution require to do?
What is diffrence between extractable volume and deliverable volume? Answer pls
