Answer Posted / murari

A= -log(%T)

What is the requirement for brazil in the analytical method vslidation comparr to ich?

353

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Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2218

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For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1389

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is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1761

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How we can identify process related and degradation impurity in single method with short period?

424

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What is the difference between chromatographic purity and related substances?

899

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

442

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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

1213

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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?

3096

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

434

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Identify problem faced when mass spectroscopy is used with HPLC system ?

1461

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4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2290

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In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

565

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What is Band broading effect explain

1486

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How doing qbd practically?

528

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