Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

3864

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

1150

Qc interview questions

Apotex,

1224

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

2 3457

why are measure gas flow " ml " in Gas chromatography

1123

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

2 6440

How to start the dissolution development for unknown tab?

IPCA,

1105

what is DIPE limit in residual solvent?

1 2246

What is control room temperature and which guide line says?

1125

What is the pH of water?

Zydus Cadila,

1 2822

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

Zydus Cadila,

1 2470

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

1113

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 1746

What is difference between chemical Assay and Hplc assay?

Lee Pharma,

2 3997

Near infrared Principle

1 1858


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Un-Answered Questions { Analytical Chemistry }

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

1666


How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

2484


How will u perform degradation study in detectors other thann PDA in HPLC Methodology

1987


how can I make the copper get white bye any salt or acit?

1634


how you start RS method development when for new product?

260






In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

2568


in which situation require to take incident in validation?

700


Loss of linearity in tkn analysis, possible reasons?

771


what is third integration

1465


in sampling of raw material which side is pasted sampled labels

1219


What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

281


IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1955


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

1653


why octanol used to determine the partition coefficient ?

1886


identification is for unknown? qualification for known? reporting for LOQ?

243