Answer Posted / alpesh patel

Benzophenone, maxima at 254 nm.

How to set specification of assay, fisdolution and related substances?

932

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Which parameter require to do for analytical method equivalency?

820

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if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

735

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How to fix the sample conc. in Related substances test by HPLC?

1145

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If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

907

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[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

849

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Difference between hlaf and rlaf

2168

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in api coa contains only process impurities and in product coa contains degradation impurities?

734

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

2229

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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?

3404

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How we choose the mobile phase for method development.?

1270

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

1004

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Basic principle of ESI?

2208

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

2265

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

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