Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why sucrose is used for polarimeter calibration

Sun Pharma,

4 40875

why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc

GVK, Torrent Pharma,

2 20822

why we use caffeine for hplc calibration?

Aurobindo,

5 26047

what is polarity and how to calculate

Reddy Labs,

2 10569

How to calculate the maximum loaded sample concentration in HPLC column?

2 9668

What is the difference between HPLC and GC?

3 18331

Why linearity of detector performed in HPLC calibration

Cipla, Intas,

2 14434

how to start the method development of Dissolution and related substances.

Apex,

1 10947

what is the criteria for choosing capillary column in GC??is it dependent on sample load?

3 6377

When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?

Torrent Pharma,

2 10626

What is discriminating media? How can u justify/select that which media (pH etc...)is suitable for your dissolution study of your compound?

Natco, SUN,

5 25749

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

Natco,

6840

How can I develope method of dissolution by HPLC OR UV

1869

Give me details about dissolution , with name ?

EPCA,

1 2817

As per USP what is RSD limit of volumteric solution of three replicate analysis

Orchid,

10 25091


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

Difference between hlaf and rlaf

1622


in OSD forms require to use gas chromatography?

312


Which parameters require to do in tech transfer?

250


if rsd failed then what require to do?

296


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1272






In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

2926


Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2449


if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

338


EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2100


How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1768


What is the principle of Thermal conductivity detector and FID?

2232


how the compound separate in coulunm,explain

1917


mahagenco syllabus for the post of chemist

5716


How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1260


what is the purge flow & how to calculate

1955