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why do we have to used saturated ammonia in TLC
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Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?
in OSD forms require to use gas chromatography?
Why only 1.2 million lux hours require in photostability study?
What is the difference between spectro meter and spectro photo meter?
what are the guidelines for analytical method validations?
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?
Related substance method equivalency on control sample or spiked sample?
on saturation solubility study data how we can find out the bcs class of drug?
what is mean by 40 in the dissolution basket mesh size?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
Why sodium hydroxide used for maintain pH of phosphate buffer
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
could negative ions be produced by bombardment process in mass spectrometry?
