perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?
1 10351acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid
3 10308today i am doing calibration of HPLC. when i inject the blank it was going on -ve.(bleow then zero) why?
3 9218in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole
4 9837Post New Analytical Chemistry Questions
What if impurity area in control sample coming more as compared to LOQ level of impurity ?
how require to fix the linearity and accuracy cincentration range?
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
in which situation require to take incident in validation?
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
In Dissolution Test why limit is define Q+5% what is the role of +5%.
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
how to select short coloum and long coloumn for new molecule
We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?
What is the formula for relative diffrence for standard solution in solution stability in validation?
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR
Why dissolution test is not performed in all of the products
why holium oxide prepared in 10% HCLO4 SOLUTION
when 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.
How to set analytical specification for combination products?