Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

WHY POTASSIUM DICROMATE USING IN UV CALIBRATION

Apotex, Micro Labs, Rene,

1 18236

What is the Baseline in HPLC.

Teva API,

2 11333

Why dst is used in kf for factor determination less than 1

Reddy Labs, Sun Pharma,

4 16108

why should we calibrate pH meter with 4,9.2 and 7.4 buffers particularly?

Celon Labs,

5 13211

why inject diluted standard solution in related substance analysis by HPLC?

Biocon, Sun Pharma,

3 15961

What is the Calcultion of S/N Ratio.

2 10185

Principle of HPLC in one sentance

Syngene,

8 16077

Why are using in Hi,zero air, Ni gass are used GC

Aurobindo, ELBS, Vimta Labs,

5 12350

what is the balance drift?

Torrent Pharma,

2 10505

Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?

MSN Pharma, Titan,

3 18547

why are using toluene in uv calibraion in resolution performance

MSN Pharma,

2 9891

why we make titiration of Iron with EDTA ?

Cipla, Sitec Labs,

1 8038

What is difference b/w IR&NIR

Apotex,

1 4940

Why does boiler drum ph maintain from 9.5 to 10.2

1 6918

What is the definition of water content or moisture content,what is the procedure going on w.c amalysis?

Cipla, KIYI,

1 10172


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Un-Answered Questions { Analytical Chemistry }

How would you decide dissolution medium for NCE compound of class I drug

1653


How do we fix the sample concentaryion in hplc method development?

635


Loss of linearity in tkn analysis, possible reasons?

771


Difference between hlaf and rlaf

1618


If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

297






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

2092


what is the disso medium for tropsiun chloride

1777


what is mean by dissolution biowaiver study?

286


what is the extinction coefficient for Indomethacin or at 319nm wave length.

3479


What is the difference between chromatographic purity and related substances?

744


on the basis of bcs class how to proceed the solubility?

250


inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

254


why cone formation during dissolution?

282


What is the diffrence in japan mkt requirement in analytical method validation over US?

263


What is a difference between potency and purity?

593