Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the difference between drug product and drug substance?

Apotex,

1 1063

What is excipient in drug product?

Lupin,

1 770

What is GF254 means in TLC plate?

Abbott,

1 810

What is zero water in TOC Analysis?

Orchid,

1 520

What is the name of the detector used in TOC?

Lupin,

1 798

What is NPOC method in TOC?

Zydus Cadila,

1 613

What is FDA form 482c?

Lupin,

1 927

What are the class-1 residual solvents listed in ICH guidelines?

2 902

What are the concentration limit for class-1 residual solvents in ICH ?

Lupin,

1 835

How does HPLC Calculate Void volume?

Lupin,

1 1087

What does theoretical plates number mean?

Zydus Cadila,

1 808

How do you increase the number of theoretical plates?

Cipla,

1 1100

Why red HgI2 added during starch preparation?

Aurobindo,

1 675

What is the Formula for coreletion coefficient in plhplc calibration

465

How to calculate coreletion coefficient

461


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Un-Answered Questions { Analytical Chemistry }

What is control room temperature and which guide line says?

600


How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

2833


why octanol used to determine the partition coefficient ?

1265


What is the difference between spectro meter and spectro photo meter?

9131


In rs method development when we are going area normalization method to dilute standard method?

150






Why we use potassium dichromate in uv calibration Exact reason behind it??

25


What is the calibration of uv process and preparation

964


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

2457


What is the difference between c8 and c18 hplc column?

120


i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

1640


What is stray light in uv what are units for stray light

469


what is the difference between potentiometric titration and karl fischer titration?

1560


What is similarity factor and its use in api strength?

129


Basic principle of ESI?

1085


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

1327