Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is diffrence between extractable volume and deliverable volume? Answer pls

738

why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

336

Qc interview questions

Apotex,

326




What is difference between" LOD" AND "VACCUME LOD"

2 1098

why are measure gas flow " ml " in Gas chromatography

333

Difference between standard operating procedure and standard test procedures in pharmaceutical industry

1 789

How to start the dissolution development for unknown tab?

IPCA,

287

what is DIPE limit in residual solvent?

1 556




What is control room temperature and which guide line says?

330

What is the pH of water?

Zydus Cadila,

1 1029

Why we use buffers Acetate for pH 4.5 & phosphate for 6.8 and not vice-versa?

Zydus Cadila,

1 791

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

245

Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.

1 331

What is difference between chemical Assay and Hplc assay?

Lee Pharma,

1 1061

Near infrared Principle

1 508


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Un-Answered Questions { Analytical Chemistry }

what is the disso medium for tropsiun chloride

884


what is %labelled amount in content uniformity of dosage unit and its calculation?

3558


what is definition of validation? which components are followed give detail?

884


why are measure gas flow " ml " in Gas chromatography

333


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

705






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?

975


what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

668


If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

940


Identify problem faced when mass spectroscopy is used with HPLC system ?

663


Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

233


Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

846


How can I develope method of dissolution by HPLC OR UV

954


what is the principle involved in turbidometry and nephelometry ?

2376


mode of absorption in alimentary canal?

1139


why octanol used to determine the partition coefficient ?

952