Which are the diffrent grades of api in pharma?

317

in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

270

Protactinium-233 is used in the thorium fuel cycle. Explain how this cycle operates and its potential benefits in nuclear energy production.

190

How is hardness of water caused?

649

4 Identify the substance oxidized, reduced, oxidizing agent and reducing agent for the following reactions

2017

What is the monomer of polyethene?

706

During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

2557

What is the diference between residual solvents and organic volatile matter

1500

in which situation ion pair agent require to use?

276

Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry

686

What are constituents of brass?

748

How does Actinium interact with other elements, and what are some notable chemical reactions or compounds involving Actinium?

115

I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

2983

What is column in chromatography?

1764

In Dissolution Test why limit is define Q+5% what is the role of +5%.

2580