Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 2098

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 5497

Can any one tell what is RECALL OF PROCEDURES is

Macleods,

1 1380




what is the difference between capillary and glass column in GC

1 5540

differance between L1 and L7 columns

Everest,

5 15838

what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?

Torrent Pharma, GICC, Mylan, Sygene, Dr Reddys, Zydus Cadila, Cadila,

1 17952

plz tall me that any pharmacopeia and guideline is par meted to use 1.68,4.01,7.00,9.00,12.45 buffer for ph meter calibration

Torrent Pharma,

1 1559

In pharmaceuticals formulation OOS applicable in Raw Material(which is not manufacturing in the company. and purchase by approved vendor)).Why?

Orchid,

1 5798




why we use only six bowls for dissolution of a drug

Cipla, Natco, TelePerformance,

1 15243

On which pharmacopoeia basis we can calibrate instruments like HPLC,GC,UV,DISSO,IR etc...

Laurus, Cipla, Micro Labs,

9 16271

why PH range 0-14 explain

Saint Gobain, DRL, Reddy Labs, Viva,

5 52721

How to make up 100ml of a solution cintaining compound A at 95µg/ml and compound B at30µg/ml for an HPLC reference standard.

3 4172

why we prefer kbr for ftir than kcl?

Aurobindo,

5 9119

How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

Vimta Labs, Graviti Pharmaceuticals,

1135

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

1311


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Un-Answered Questions { Analytical Chemistry }

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

2077


are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????

697


acceptance criteria for lod & loq by standard deviation of response and slope??

1167


Basic principle of ESI?

816


What is the difference between purge septum flow and column flow in gas chromatography?

760






calibrtion procedue of LC-MS

1245


Why we check moisture,ash & AIA in product

456


what is third integration

688


Why a1% value is used for some product ? What is the criteria for selection a1% value ?

926


iam usig ph buffers merk. manually how to prepare ?

970


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?

2414


How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

1135


what is the disso medium for tropsiun chloride

883


cefoperozone and sulbactam inj. hplc test method

1248


Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

1280