what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1973

How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

3356

Why is ammonia-ammonium chloride buffer added?

1174

Name the three elements which are forms carbohydrates?

1022

If vendor having more imp than monograph then how to proceed? and how to set spec?

935

why do hard water never produce foam when a soap is dissolved?

1042

In order to avoid the pyridine catalyst use in many synthesis which is harmfull to environment, which catalyst can be used....?

2401

Explain what is the chemical formula of detergent?

994

how you start RS method development when for new product?

721

What are the electrodes used in the measurement of ph for the determination of pka?

1292

As a chemist working with Protactinium, what safety measures and precautions would you take due to its radioactivity?

574

how pda detector works over uv?

742

How require to perform linearity as per ANVISA? What are the acceptance criteria?

1336

what is the difference between elctrefining and electrolysis?

2251

How is librated iodine estimated?

1093