Answer Posted / t.tirupathi rao

acetone is react with methanal to form water molecule continue, end point not reached.so pyridine is added to methanol, pyridine is bind the hydrogen molecule in methanol,so do not form the water molecule ,end point reached

process of Diclofenac sodium,IP.

2222

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inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

718

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

835

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

1725

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using gradient pressure in gas chromatography are not ?using gradient pressure why

3396

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3227

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

3701

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WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2142

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Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

708

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how require to interprit the method precision data of hptlc?

827

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how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.

2314

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Explain the relations between number of carbon atoms in alkanes and retention time ?

2153

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What is importance of pH in the Heavy metal test and How it effect on the test results?

2289

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Why potassium dichromate is used in calibration of uv?

1993

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Why perchloric acid used for potentiometric titration

2690

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