Why sodium hydroxide used for maintain pH of phosphate buffer
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in which situation require to change rs specification?
What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)
WHICH PRESSURE IS HIGH EITHER INJECTOR OR DETECTOR IN GAS CHROMATOGRAPHY
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Why to use propyl paraben in HPLC gradient calibration
how to calculate elemental impurities?
what is mean by 21 CFR PART? In that what is 21 ?
What is column in chromatography?
what is SOP?How can prepare?
What is differences between normality and molarity.in which cases both are used?
What is Rf value& Rx value in TLC?
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
What if impurity area in control sample coming more as compared to LOQ level of impurity ?