Answer Posted / kondam.manoher reddy

caffeiene having different wavelenths it having 2 maximas
and 1 minima.
1st maxima is 205nm
2nd maxima is 273nm
minima is 245nm
and it is primary reference standard and also suggested in
pharmacopiea.it contains non recemic CHON.It is very stable,
we can use a long time for analysis
it is not degradable.

What is rs test why we are performing rs test?

1867

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analytical method validation require to with respect to release specification or shelf life specification?

800

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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?

686

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How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1780

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why we should take dst factor for below 1%moisture samples

2670

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In which situation we require to prepare the standard solution from sample in Related substance method?

785

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What is the Formula for coreletion coefficient in plhplc calibration

1836

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how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2606

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Is it nessesary all multimedia dissolution require descriminatory?

801

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why require to add enzymes in capsules dissolution only? is it require to tablet also?

681

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What is shaking level in GC?

795

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which are the sizes of capsules?

976

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How we choose the mobile phase for method development.?

1219

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How can I develope method of dissolution by HPLC OR UV

2409

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what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2632

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