Organic Chemistry (342)
Inorganic Chemistry (123)
Analytical Chemistry (1387)
Physical Chemistry (62)
General Chemistry (478)
Chemistry AllOther (190) I have got selected for Aurobindo Pharma AR&D, HR person is asking me to sign in agreement. can I join?
19 45090Why sulfuric acid is used in sulphated ash / residue on ignition test.
CS Pharmaceuticals, Dr Reddys, GVK, HPLC, Micro Labs, Samrudh, Watson Pharmaceuticals, Wings Customer Care,
9 78884During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?
1 5292
What is kentchin? Is it real?
How are the waters classified based on the degree of hardness?
Why is acetone used for cleaning viscometer?
State lambert’s law.
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
What is bed worth rule? : Electrochemistry Corrosion
What are the inorganic material eliminated in Sulphated Ash
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.
How to know the estimated LOQ concentration in ppm
what you do when compound having dwel wavelength?
Why is ph increases suddenly after the equivalence point?
Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately
What is meant by ph of a solution?
iam usig ph buffers merk. manually how to prepare ?