Answer / santosh

Don't select wavelength nearer to cutoff of mobile phase or prepare mobile phase transpersonal to selected wavelength

Answer / a.iyyappan

Baseline noise can be regulated by using HPLC grade solvents and high purity buffer salts.
Detector wavelength should be follow UV CUTT OFF POINT.

Nitrogen test is used for which chromatography?

1 Answers   Laurus,

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Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.

1 Answers  

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Why are using in Hi,zero air, Ni gass are used GC

5 Answers   Aurobindo, ELBS, Vimta Labs,

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we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was failed. then how can i justify that the samples analyzed on the system during this 6 months was wright? how can i forward in to the next step for those batches?

5 Answers  

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what is the extinction coefficient for Indomethacin or at 319nm wave length.

0 Answers   GSK GlaxoSmithKline,

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what is difference between IR & FTIR ? how we calibarte both ? I want to know the procedure.

7 Answers   Cadila,

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

0 Answers  

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why do we use around only 60 mg of K2cr2o7 in the UV calibration -control of absorbance test?

3 Answers   Reddy Labs,

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WHAT IS PVT TEST IN DISSOLUTION TEST , WHAT IS PVT SIGNIFICANCE AND HOW IT IS PERFORMED ?

1 Answers  

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in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

2 Answers   Glenmark, Neuland,

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1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation

1 Answers  

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what is biorelivent dissolution media?

0 Answers  

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