why inject diluted standard solution in related substance analysis by HPLC?2 11238
What is the Calcultion of S/N Ratio.2 7870
Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?3 14179
Why does boiler drum ph maintain from 9.5 to 10.21 4945
What is the definition of water content or moisture content,what is the procedure going on w.c amalysis?1 7719
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
what is the limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.
What is the acceptance criteria for moisture balance when calibrated with sodium sulfate
what is procedure of actual procedure for registration of drug?
Why sodium hydroxide used for maintain pH of phosphate buffer
why equlirium conatant of water have 14 value
In Dissolution Test why limit is define Q+5% what is the role of +5%.
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
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?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
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.
What is gelatinization?
What is diffrence between extractable volume and deliverable volume? Answer pls