Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

In Force degradation Study Compound is not degrade in any condition , also in higher stress what can i do ?

Alembic,

4 6303

4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

1354

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.

950




How to Prepare Dilute Sodium hydroxide solution?

Claris Otsuka,

3 4441

what type of question will ask in the interview of lab chemist.

Monginis, Godavari Biorefineries,

2180

Why we show ammonia vapours to tlc plate?to which compounds?

1 4071

What is the SOP for SOP

JBCPL,

4 6146

Why perform dissolution multimedia study in dissolution Development

Optimus, Cipla,

4 14457




what is the purge flow & how to calculate

Granules,

1260

what is mean by 21 CFR PART? In that what is 21 ?

1 9934

is there any exact definition for Theoritical plates ? chennu srinivas

5 6515

What is the use of tailing factor ?

2 10940

what is the relation of normality & molarity ? give me formula?

5 9764

In C8,C18....etc have 4&5 etc... microns Columns is there like that how to separate Chiral columns as per Micron size?

1 4005

What is the diff b/n OVI and Residual solvents

1 4755


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Un-Answered Questions { Analytical Chemistry }

What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?

2600


What is the difference between spectro meter and spectro photo meter?

8680


Colorimtry

293


what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

7344


WHY given much noise PDA dector then VWD Dector

742






What is the diference between residual solvents and organic volatile matter

762


How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

2550


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

1127


why disodium tartarate used in karl-fischer instrument ?.

794


Why sodium hydroxide used for maintain pH of phosphate buffer

1022


what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

1284


AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

913


How you develop a method in HPLC?

1357


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...

649


can i use hplc detector to uplc and why?

1031