Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

solvents used in NMR

Laurus,

2 6298

what does 'n' stands for in spectroscopy?give the formula.

Laurus,

1975

define beer-lambertslaw.

Laurus,

5 11836

difference between precision & accuracy.

Laurus,

1 10399

formula for %RSD.

Laurus,

4 13523

which chromatographic technique is used for softening hard water?

Laurus,

1 6129

Nitrogen test is used for which chromatography?

Laurus,

1 6664

what are the primary standards of redox titrations?Name any two.

Laurus,

2 8237

In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

Laurus,

1781

mode of absorption in alimentary canal?

Sun Pharma,

1925

why we calibrate ph meter and balance daily.....but hplc and uv requires quaterly?

Apotex, UPL,

5 19384

why we are use metthanol variously in kfr?why don't use other solutions?

4 11330

when we use capillary and packed columns in gc

Rakshit Drugs,

4 9108

what is the difference between IR and FTIR instrument analysis

2 11526

how can give the expiry period and restadardisation of volumetric solution

Meenaxy Pharma, SRF,

2059


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Un-Answered Questions { Analytical Chemistry }

how require to fix the linearity and accuracy cincentration range?

668


How to start the dissolution development for unknown tab?

1152


1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.

2431


How to calibration of the uv spectroscopy and its test?

674


in dissolution why pool sample needed? in which type of drug pool sample need?

2598






For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1257


WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

1622


why we use a particular hplc column for a particular compound give reasons?please

2273


in sampling of raw material which side is pasted sampled labels

1249


in OSD forms require to use gas chromatography?

336


In which situation we require to prepare the standard solution from sample in Related substance method?

292


why multimedia dissolution require to do?

312


can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

1713


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

3603


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

2963