why require the ph, buffer during hplc mobile phase?

0 Answers  

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identification is for unknown? qualification for known? reporting for LOQ?

0 Answers  

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what is mean by theoritical plates(not formula) ?

4 Answers   Micro Labs,

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what is mean by assay?

6 Answers  

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In HPLC Chromatographic separation Resolution equation is Rs = 1.18 (tR2 –tR1)/wh1+Wh2, Where, tR2 and tR1 is run time of eluent ratios of the distances from the point of application to the centers of the spots and the distance travelled by the solvent front from the point of application (retardation factor), and Wh1and Wh2 , is peak width of at half height. What is 1.18 ?

1 Answers  

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HPLC Calibration was done in Reverse Phase, but not in normal phase why explain?

11 Answers   Cipla, Orchid,

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why we are using k2cr207 in uv calibration ? why we r not using kmno4?

1 Answers   Glochem, Sidmak Laboratories,

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In the method validation proceedure,lod & loq calculation we use the formulae for LOD=3.3*SD/slope and for LOQ=10*SD/slope,why we use 3.3 & 10 in the formulae?

1 Answers  

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Why we use Caffeine in hplc calibration

2 Answers   Emcure, Laurus,

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In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?

8 Answers   Aurobindo, Cipla, FDC,

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What is reaction takes place when water content analysis is done

2 Answers  

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A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 Answers  

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