If we have 120 minutes run time method for HPLC and you wan to decrease the Run time so what should you do??

6 Answers  

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in which situation require to change rs specification?

0 Answers  

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why disodium tartarate is used for autotitrator calibration

2 Answers   Cipla, Micro Labs,

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Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb

2 Answers   NDA,

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Optical Rotation*0.9477*100*200] Assay Of dextrose= ________________________________ 99.8* 200 why Factor=0.9477

1 Answers   Claris Lifesciences, Inven Pharmaceuticals, Levo,

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Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

2 Answers   DRL,

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on saturation solubility study data how we can find out the bcs class of drug?

0 Answers  

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why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc

2 Answers   GVK, Torrent Pharma,

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In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

0 Answers  

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what is primary solution and secondary solution

2 Answers  

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from compund pka value how to select buffer and column?

2 Answers   Emcure, Zydus Cadila,

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can some other acids like nitric acid or HCl can be used in the calibration of UV.Vis. spectrophotometer????

2 Answers   Cipla,

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