Answer Posted / naveen

In LC:
5 replicates of standard if %rsd is 2.0% orless
6 replicates of standard if %rsd is more than 2.0%

If combination product how require to identify which imp is of which api?

823

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For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4048

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We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1881

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Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1450

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How can the GC or HPLC method is selected to determine the impurity profile in drug product?

7556

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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,

2580

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which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

2148

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What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

2023

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Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2810

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What is the difference between chromatographic purity and related substances?

1344

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what is the disso medium for tropsiun chloride

2246

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how can give the expiry period and restadardisation of volumetric solution

2571

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we can use expired sample for validation and analyst qualification?

786

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WHAT IS THE USE OF STARTER ?????????

2396

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please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1614

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